In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.

Ex Input:
Article: Water is of vital importance in a healthy diet and lifestyle. There are many health benefits of drinking water .It helps get _ out of our systems. It aids in the delivery of oxygen and nutrients .In fact, nearly every system in our bodies depends on water for proper functioning .But how can we tell whether the water we're drinking is healthy? As to tap water, it's relatively easy .If your water comes from a governmental source , the suppliers are required by law to provide annual water quality reports .If you have a well, you can have an authorized lab test your water .It may cost $100 or more, but it's a small price to pay for peace of mind . When it comes to bottled drinking water, it can be more difficult to know what you're getting .Start by checking the label or the bottle cap. Some may tell you that the water comes from a governmental source or "community water system", which means tap water .If the label doesn't give any information, you can call the bottler and ask .But don't be surprised if you get the runaround and are transferred to several different departments .Some states have a bottled water program that tracks bottled drinking water and can tell you the origin of the water as well as other information . Safe and healthy drinking water has become big business .Thousands of companies are competing for your hard earned cash , and some are not always honest about what their products offer .The initial investment in a home drinking water filtration  system can seem expensive at first , but over time , it is usually less expensive than bottled drinking water .And with a water filter , you at least know where the water you drink comes from and how it is treated . Before going out and spending your hard earned money on bottled drinking water , it's a good idea to do some research .You're likely to find that a drinking water filtration system or purifier is a healthier choice and provides the best value as well . 
 Question: By using a water filter, people  _ 
 Options: (A) can drink water without fearing that the water isn't treated (B) will have to pay more money eventually than if they just drink bottled water (C) will know if the water company is honest or not (D) can check the quality of the water by themselves.

Ex Output:
A


Ex Input:
Article: Young women are more adventurous than young men when travelling abroad in gap years.One in three female backpackers visits more than three countries during a year out and travels alone, according to new research. By contrast, the majority of their male counterparts  visit only one country and tend to travel in groups, says a survey by the Gap Year company, which provides information and services for students considering taking a year out. More women than men say that their prime reason for taking time off is to see the world and experience different cultures.Men are more likely to rank "having fun" higher on their list of _ .Women are more likely to value the challenge of a foreign trip, and many cited reasons such as learning a language and meeting new people. The more adventurous gap years taken by women seem to work to their benefit; more than three quarters of those surveyed have reported increased confidence, self-reliance  and independence, whereas only half of the men had that experience. The research also shows that women are more likely to do voluntary work while travelling, with more than one in ten helping with teaching or development projects.One of the reasons given for this is a wish to see the country in an authentic light. A greater proportion of women than men face objections or criticism from their families over their gapyear plans.Among the men surveyed, lack of money is the main barrier to travel. Carolyn Martin, a doctor from London,is a typically confident female traveller.Starting in Cape Town, she travelled around southern Africa and Australia with a string of unusual and sometimes dangerous jobs. "I had one job chasing elephants off the runway in Africa by banging a stick against a pan," she recalled."It was OK but one day I did get chased by one." She said that she had travelled alone because "you meet more people". 
 Question: By referring to "gap year" the writer means   _  . 
 Options: (A) a gap you come across after leaving high school (B) a time when you are caught in a dilemma between work and study (C) a period after you find a job upon your graduation from college (D) a year off between high school and college for certain purposes

Ex Output:
D


Ex Input:
Article: If you live in the U.S., you're probably used to throwing banana peel into the trash. But people in other countries, including India, have been taking advantages of their nutritional benefits for many years. While the flesh of a banana is soft and sweet, the skin is thick, hard and slightly bitter. To eat the peel, you can fry, bake, or boil it for at least 10 minutes. Also, the riper bananas get, the thinner and sweeter banana peel will become. That's because of a natural plant hormone  called ethylene  that fruits release as they ripen. Ethylene interacts with the sugars and fiber in the banana skin, changing complex sugars into simple sugars and breaking down pectin, a form of fiber in bananas that keeps them stiff. That's why the older your banana is, the flimsier  it feels. The sweet flesh of a medium-sized banana contains great percentages of your daily recommended intake of various nutrients, such as: *12% of your daily fiber, which helps with digestion and may help lower your risk of diabetes  *17% of your vitamin C, which is important for your immune system as well as your growth *20% of your vitamin B6, which aids the body's ability to turn food into energy *12% of your potassium, which helps with the development of cells, tissues, and organs throughout the body If you eat the skin along with the flesh, you will get an even bigger increase in these same nutrients. Eating the peel is not only good for your body but also better for the earth. The average American ate 11.4 pounds of bananas in 2014. Since a medium-sized banana weighs about 0.3 pounds, that equates to about 38 bananas per person, or about 12 billion for the whole of the U.S. And since most of us throw away the peel, that also means a lot of organic waste. 
 Question: We can learn from the text that in the U.S. people  _  . 
 Options: (A) like eating bananas (B) waste a lot of food every year (C) don't make good use of banana peel (D) know little about the value of the flesh of bananas

Ex Output:

C


