Detailed Instructions: 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.
See one example below:
Problem: 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: 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.

Problem: Article: What looks like an angry old man and lives at the bottom of the ocean? It's the world's ugliest animal---the blobfish . Its strange skin is shaped by its habitat. It lives 800 meters below the ocean's surface, a depth where very few other creatures can survive. Most fishes have a swim bladder , which is filled with gas and helps them stay afloat. At the depth that the blobfish live, water pressure is 80 times higher than that at higher sea levels and any swim bladder wouldn't be able to serve its purpose. The blobfish don't have a swim bladder because their skin works the same way. It helps them stay afloat without having to use any energy. The blobfish have a pretty relaxed attitude towards eating. All they do is stay and wait for crabs or lobsters to come by. Since the blobfish like to eat crabs and lobsters, they often get caught in nets that are used to catch lobsters or crabs and end up dying or being killed. They are not suitable for eating so they are useless for fishermen. There's a purpose behind the blobfish's new title; it has become the new mascot for the Ugly Animal Preservation Society, an organization whose purpose is to preserve endangered ugly animals. "We've needed an ugly face for endangered ugly animals for a long time and I've been amazed by the public reaction," said the Society's Simon Watt. "For too long cute animals have taken the limelight but now the blobfish will be a voice for those who always get forgotten."They hope this new face will help the world know that we need to help preserve the populations of ugly animals too.
Question: The biggest difference between the blobfish and most other fishes is that the blobfish _ .
Options: (A) cannot be eaten by people (B) don't have a swim bladder (C) only live at high sea levels (D) aren't active in catching food
Solution:
B