In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.

[Q]: Article: Do you want to write your password down so that no one can see it, or do you want to send someone a secret message? Knowing how to make an invisible ink message will have you feeling like a secret agent in no time. These are instructions for making invisible ink using baking soda. Difficulty: Easy Time required: A few minutes  What you need: Baking soda, Paper, Water, Light bulb, Paintbrush, Measuring cup, Purple grape juice Here's how: There are at least two methods of using baking soda as invisible ink. Mix equal amounts of water and baking soda. Use a paintbrush to write a message onto white paper, using the baking soda solution   as "ink". Allow the ink to dry. One way to read the message is to hold the paper up to a heat source, such as a light bulb. The baking soda will cause the writing in the paper to turn brown. The second way to read the message is to paint over the paper with purple grape juice. The message will appear in a different color1. Tips: If you are using the heating method, avoid burning the paper. Baking soda and grape juice react in an acid-base   reaction, producing a color1 change in the paper. Grape juice concentrate   results in a more visible color1 change than regular grape juice. 
 Question: is not needed for making invisible ink. 
 Options: (A) Baking soda (B) Paper (C) Water (D) Ink 
 Asnwer: C
[A]: No


[Q]: Article: Drownings, bicycle injuries, falls, and pedestrian accidents are the most common causes of childhood injury or death. Here's what you need to know to avoid tragedy: *      Drowning: Each year, thousands of children die from drowning, with two-thirds of accidents occurring in the summer. To protect kids, parents should install multiple layers of protective devices, with each layer offering another opportunity to avoid a tragedy. Fences, door alarms, pool covers are all somewhat effective individually, but their effectiveness is increased dramatically when used in combination with one another. *      Falls: Falls from heights kill 140 children under the age of 15 each year in the United States, and seriously injure three million more, making falls the leading cause of non-deadly injury for this age group. According to the American Academy of Pediatrics (AAP), falls are especially a problem for children living in multi-story housing during the summer months, when windows are open and children are more likely to be playing on fire escapes, roofs and balconies. To keep kids safe, AAP recommends window guards be installed on second story and higher windows. When choosing guards, install those that are operable in the event of emergencies like a house fire. Using childproof gates can prevent falls down stairways. Nevertheless, no gate can replace parental supervision   *      Bikes: Bike accidents kill over 1,500 children aged 14 and under each year. Of these deaths, more than half occurred during the summer. According to the AAP, head injuries from cycling are the most common cause of disability. A recent study in Seattle, Washington showed that helmets reduced the risk of head injury by 85 percent and brain injury by 88 percent. When purchasing a bike helmet, parents are urged to make sure it meets the bicycle helmet safety standards of the American National Standards Institute (ANSI) *      Pedestrian: Over 6,000 kids aged 14 and under die every year as a result of an unintentional pedestrian-related injury. As a general rule, kids under 10 should not be crossing the street alone. Young children lack the ability to judge the speed and the distance of oncoming traffic. Parents need be models and teach proper pedestrian behavior. Cross at the corner and when you do cross, continue to look both ways because there are likely to be more cars turning into your path or people speeding. Obey all the traffic signals. 
 Question: What is the point of the article? 
 Options: (A) To introduce factors that cause risks for children. (B) To give tips on what to do to prevent accidents about children. (C) To explain why summer is a risky time for kids. (D) To describe what to do to prevent accidents at home. 
 Asnwer: B
[A]: Yes


[Q]: Article: Harvard researchers have created a tough, low-cost, biodegradable   material inspired by insects' hard outer shells. The material's inventors say it has a number of possible uses and someday could provide a more environmentally friendly alternative to plastic. The material, made from shrimp (') shells and proteins produced from silk, is called "shrilk." It is thin, clear, flexible and strong. A major benefit of the material is its biodegradability. Plastic's toughness and flexibility represented a revolution in materials science during the 1950s and '60s. Decades later, however, plastic's very durability   is raising questions about how appropriate it is for one-time products such as plastic bags, or short-lived consumer goods, used in the home for a few years and then cast into a landfill where they will degrade for centuries. What is the point of making something that lasts 1,000 years? Shrilk not only will degrade in a landfill, but its basic components are used as fertilizer , and so will enrich the soil. Shrilk has great potential, the inventors said. Materials from which it is made are plentiful in nature, found in everything ranging from shrimp shells, insect bodies to living plants. That makes shrilk low cost, and its mass production possible should it be used for products demanding a lot of material. Work on shrilk is continuing in the lab. The inventors said the material becomes flexible when wet, so they're exploring ways to use it in wet environments. They're also developing simpler production processes, which could be used for non-medical products, like for computer cases and other products inside the home. They're even exploring combining it with other materials, like carbon fibers, to give it new properties. 
 Question: What has become a concern about plastic? 
 Options: (A) Using it properly. (B) Producing it cheaply. (C) Developing its properties quickly. (D) Evaluating its contributions fairly. 
 Asnwer: B
[A]:
No


