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.
One example: Article: Homework can put you in a bad mood , and that might actually be a good thing. Researchers from the University of Plymouth in England doubted whether mood might affect the way kids learn. To find out the answer, they did two experiments with children. The first experiment tested 30 kids. Someshapes were hidden inside a different, larger picture. The kids had to find the small shapes while sitting in a room with either cheerful or sad music playing in the background. To test their mood, the scientists asked the kids to point to one of five faces, from happy to sad. Children who listened to cheerful music tended to point to the smiley faces while the others pointed to the unhappy ones. The researchers found that sad kids took at least a second less to find the small shapes. They also found an average of three or four more shapes. In the second experiment, 61 children watched one of two scenes from a film. One scene was happy, and the other was sad. Just like in the first experiment, kids who saw the sad scene acted better compared to the others. The researchers guessed that feeling down makes people more likely to focus on a problem or difficult situation. Not all scientists agree with them, however. Other studies argued that maybe, that cheerful music in the first experiment distracted kids from finding shapes. While scientists work on finding out the answers, it still might be wise to choose when to do your tasks according to your mood. After eating a delicious ice cream, for example, write an essay. 
 Question: Researchers did experiments on kids in order to find out _ . 
 Options: (A) how they really feel when they are learning (B) whether mood affects their learning ability (C) what methods are easy for kids to learn (D) the relationship between sadness and happiness
Solution is here: B
Explanation: It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment. So, B is the correct answer.

Now, solve this: Article: That day It's 4 am,and Danilo C.Dequina is already awake. Holding a flashlight and a bucket, he is walking in the pre-dawn darkness along the shore of Old Poblacion Beach in the town of Maitum,Sarangani,in the far south of the Philippines.  A few minutes later,he spots a patch of sand that appears to have been disturbed by a turtle. Dequina studies the area carefully,figuring out where the eggs have been buried, and then starts digging slowly. After clearing away several centimeters of sand, he uncovers a large group of eggs,roughly the size of ping-pong balls. He picks them up and puts them in the bucket. Dequina carries the eggs to his hatchery  , some 50 meters away from the seashore. The hatchery is really just a sandy patch of land under the coconut trees enclosed by a black fine-mesh fence. It is here that he buries the turtle eggs he has collected. Today,Dequina scoops out a hole,puts the eggs in it,and covers them with sand. After 45 to 70 days, the eggs will hatch. Dequina will then carty the hatchlings to the shore,and release them into the sea. He admits to feeling sorrow as he sets the hatchlings free most are hunted down by natural predators,and just one percent survive to adulthood.  According to the Philippine Department of Environment and Natural Resources (DENR), eight species of sea turtles face extinction,including four that come to the shores of Sarangani to lay their eggs --the Hawksbill,Olive Ridley,Loggerhead and Green Turtles.  After learning about their  _ , Dequina attended a DENR training session on turtle conservation and decided to take action. He helped the local government to set up the Pawikan Nesting Sanctuary next to his house in 2003. The hatchery drew the attention of the locals. "They started to change their attitudes towards sea turtles,"52-year-old Dequina says. "If they see turtle eggs,they will either bring them to me or inform me of the nesting places." Over the past seven years,more than 3,000 hatch- lings have been released to the ocean. 
 Question: Dequina walks along the shore to  _  . 
 Options: (A) release small turtles (B) bury turtle eggs deeper (C) find newly laid turtle eggs (D) clear away trash from the seaside
Solution:
C