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: Kids at the Interlake School Division were the first Canadian students to take part in a program to send experiments to the International Space Station.(ISS). Jordan Schott and three other sixth grade students came up with the idea to test royal jelly in space . Their experiment came very close to be tested on the space station. "We were seeing if we could send it to space, and if it would lose its nutritional value" faster and or slower, "said Schott. Schott is one of the 18 students in the Space Knights Club at Woodlands Elementary School, part of the Interlake School Division. Over 450 students from the Division took part in the program. "I thought we were just students and we couldn't do much in the way of that. It's a way to communicate with people up there ," said Braeden Clark, a seventh grade student who is also in the club. The astronauts shared what they learned with their school with a full day of activities all about science and space. Teacher Maria Nickel is the organizer of the club. She said the day was great for students to learn what they could do. "Space is one of those great things that get kids excited, but it also gives them the chance to do so much. They can be an astronaut; they can be an engineer, "She said. The day was held in honour of Chris Hadfield, a Canadian astronaut now in the Internal Space Station. "It gives kids someone more to look up to. Here's a real hero to look up to who's doing it all, doing it through education," said Nickel. Jordan Schott thinks it's really cool. "To me it seems so cool how people can go up to space, and science is something I've always liked," She said. Schott says she wants to follow in the footsteps of Hadfield and be an astronaut when she gets older. One of the winning experiments in the competition was produced by students from Argyle, Manitoba. It will travel to the space station in the fall of 2013.
Question: The program at the Interlake School Division _ -
Options: (A) was carried out by 18 students. (B) was to test royal jelly in space (C) was designed to send experiments to the ISS (D) allowed the first students to connect with the ISS

Ex Output:
C

Ex Input:
Article: Mattel Inc. is _ 4.4 million Polly Pocket toys with magnets after some of them caused serious injuries to children who swallowed magnets that fell off. Tiny magnets inside the toys may fall off without being noticed by parents and babysitters. The magnets can be swallowed or placed in children's noses or ears. When more than one magnet is swallowed, the magnets can attract each other and cause intestine perforation which can be deadly. The Consumer Product Safety Commission(CPSC)received 170 reports of the small magnets coming out of these recalled toys. There were three reports of serious injuries to children who swallowed more than one magnet. All three suffered intestinal perforations that required operation. A 2-year-old child stayed in hospital for seven days and a 7-year-old child was hospitalized for 12 days. An 8-yeal-old child was also hospitalized. The recalled Polly Pocket toys contain plastic dolls and accessories that have small magnets. The magnets measure one-eighth inch in diameter and are fixed in the hands and feet of some dolls, and even in the plastic clothing, hairpieces and other accessories to help the pieces stay on the doll or the doll's house. The model number is printed on the bottom of the largest pieces on some of the toys. Contact Mattel if you cannot find a model number on your product to determine if it is part of the recall. Polly Pocket magnetic toys currently sold in stores are not included in this recall. The model numbers included in the recall are: B2632, B3158, B3201, B7118, G8605, H1537, H1538 and H3211. The toys were on sales in department stores and toy stores from May 2006 through September 2009 for between $15 and $30. Consumers should immediately take these recalled toys away from children and contact Mattel for the return of the toys. For more information contact Mattel at 888 597-6597 anytime or visit the company's Web site.
Question: The main purpose of the passage is _ .
Options: (A) to criticize Mattel Inc. for their bad products (B) to inform readers of Polly Pocket toys recall (C) to warn readers the danger of swallowing magnets (D) to suggest some ways to return Polly Pocket toys

Ex Output:
B

Ex Input:
Article: A clinic in West Kalimantan, Indonesia, works to support the health of people and forests. Kinari Webb is an American doctor who helped start the non-profit group that operates the clinic. The group is known as ASRI. Dr. Webb says most communities value the local forests, but illegal logging was often their only way to earn money to pay for health care. "Villagers know that if they protect the forest, that's good for their long-term well-being. But if they have no money to see a doctor, they have to do illegal logging," said Dr. Webb. The clinic is in Sukadana, a village outside Gunung Palung National Park. Each month someone from ASRI visits the surrounding villages to see if they are actively logging or burning land within the park. Communities that do not take part in illegal logging pay about 40 percent less for health care than those that do. Also, the clinic uses a barter system. Patients can pay with things like handmade baskets, labor exchanges, young trees or fruit they grow. Patients learn about environmental conservation as they wait to register at the clinic. Many of the 70 staff members also help communities learn about organic farming and other ways to earn money. In May, ASRI started a program to identify forest "guardians". These guardians work with the community to try to prevent illegal logging. One of the guardians says he entered the program because ASRI helped his son recover from tuberculosis . The clinic is small, but very busy. However, people did not trust the clinic at first. They wanted to go to the only hospital in the area. Yet its resources are limited and villagers often have to travel more than two hours to get there. Now, people happily share stories about the clinic. Amelia's mother is one of them. She started going there when her daughter was eight months old. She says the treatment is good. Dr. Webb smiled when she heard that. Dr. Webb said: "Health care is an incredible key. And everyone everywhere around knows that we really care and that we are helping save their lives."
Question: A barter system is a system in which _ .
Options: (A) people trade by the exchange of goods (B) patients can receive a free treatment (C) customers pay the goods in cash (D) trees are taken good care of

Ex Output:
A