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.

Example input: 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
Example output: B
Example 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.
Q: Article: Getting close to active or erupting volcanoes can be dangerous. But for Michael Rampino, it's all in a day's work. Rampino is a volcanologist, a scientist who studies volcanoes and how they affect our planet. Rampino has been close to red-hot lava flows in Hawaii and explosive volcanoes in Indonesia. He knows when to get close to an active volcano and when to back away. Rampino wasn't always a volcanologist. He worked for NASA for seven years. He studied rocks until he began to research climate change and the effects that volcanoes have on climate. He became interested in the subject. "Once I started working with volcanoes," Rampino said, "I was _ ." Rampino is a professor at New York University. As part of his job, he travels to areas where volcanoes have been active. "Active" means they have erupted within the past few centuries and probably will erupt again. Rampino studies the deposits of ash and other materials from the eruptions. The ash may hold clues to what happened to the Earth in the distant past. It may also help scientists predict what could happen to Earth's climate in the future. Rampino doesn't work alone. He works with a team of scientists who use computers to stimulate the effects volcanoes have on Earth's atmosphere. Being a volcanologist may be hard work, but it's also fun. "It's cool traveling the world studying volcanoes," Rampino says. When he talks to students about his work, he tells them that his goal is "to understand the events that have shaped Earth's history."
Question: To Rampino, being close to active volcanoes is _ .
Options: (A) adventurous but meaningful (B) scary but necessary (C) impossible and unnecessary (D) dangerous but urgent
A:
A