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: Chinese New Year Celebration is the most important celebration of the year. Chinese people may celebrate the Chinese New Year in slightly different ways but their wishes are almost the same; they want their family members and friends to be healthy and lucky during next year. Chinese New Year Celebration usually lasts for 15 days. Celebratory activities include Chinese New Feast, firecrackers, giving lucky money to children, the New Year bell ringing and Chinese New Year Greetings. Most of Chinese people will stop the celebrating in their home on the 7th day of New Year because the national holiday usually ends around that day, however celebrations in public areas can last until the 15th day of New Year. It is the money given to kids from their parents and grandparents as New Year gift. The money is believed to bring good luck, ward off monsters; hence the name "lucky money". Parents and grandparents first put money in small, especially-made red envelopes and give the red envelopes to their kids after the New Year's Feast or when they come to visit them on the New Year. They choose to put the money in red envelopes because Chinese people think red is a lucky color. They want to give their children both lucky money and lucky color.
Question: What can we learn from the Paragragh 1?
Options: (A) Chinese New Year Celebration is one of the most important celebrations in China (B) Chinese New Year Celebration can bring luck to them during the next year (C) Some different celebrations still exist (D) Kids can get their lucky money during the Chinese New Year Celebration

Ex Output:
C

Ex Input:
Article: Roughly speaking, teachers in traditional education may feel that students are too young to know much about the world, and have to be told what to do most of the time. By contrast, open education offers teachers quite different feelings. Students are expected to be responsible for their own education--to discover subjects by themselves instead of being made to study them. This way of teaching allows the students to grow independently and to develop their own interests in many subjects. Some students who do badly in a traditional classroom will be happier in an open classroom and enjoy learning. They will not have to worry about grades or rules at all. However, many students won't do well in an open classroom. For these students, they will do little in school if there are too few rules. They will not make good use of open education, which is so different from traditional class, because they may have a problem getting used to making so many choices on their own. For them it is important to have some rules to direct them. They may worry about the rules even when there are no rules. In addition to that, some traditional teachers do not believe in open education and do not like it either. Since both of some good points and bad points of the open education have been explained clearly, you may have your own opinion on the issue. Personally, I think that the concept of open education is good only in theory. In actual fact, it may not work very well in a real class or school. I believe, most students, but of course not all students, need some structure in their classes. They may want and need to have rules. In some cases, they must be made to study some subjects. Many students are pleased to find subjects they have to study interesting. They would not study those subjects if they did not have to.
Question: Open education allows the students to _ .
Options: (A) grow as the educated (B) be responsible for their life (C) discover subjects outside class (D) develop their own interests

Ex Output:
D

Ex Input:
Article: Your Car Is Ready for Take-off The flying car has been talked about for many years,but now it appears that the idea is about to become a reality. An international company has built a two-seater plane that, at the touch of a button ,transforms into a car perfectly suitable for driving on public roads. It has been designed so that the wings fold up automatically; and it takes just 15 seconds to switch between flying and driving. With its wings fully open and the propeller spinning, it can take off from any airfield. Flying cars are quicker than traditional ones for travelling from city to city,and they can run on ordinary fuel. Another big advantage is that they are cool ,like something you would see in an action film. At the moment9however, the flying car's wheels are illegal to leave the ground. That is not because of technical reasons or problems with the design. It is because the various road and aircraft authorities simply cannot agree on whether it is a car or a plane. "The government and the authorities have never thought seriously about a flying car, says Alan Price ,the president of the company that has developed it. "I wanted a car that could fly and drive ,but it is difficult to find an organization prepared to insure the vehicle against accidents. Nevertheless?the company hopes to produce and deliver its first flying car soon. The company already has orders for 40 of them. The majority the potential customers are older and some are retired. There have even been orders from some people who have no pilot's license. The flying car will cost around $ 200.000. "For an airplane,that's a very reasonable price, but for a car, It's quite expensive," explains Alan. "But it just is not possible to make a $ 10,000 flying car yet. " This latest means of transport will not become a mass-market item in the near future,but in the long term it has the potential to change the way you travel. It will become no more expensive than driving your car on the motorway. Travel time could be reduced by more than half. So the next time you are told to fasten your seat belt, it may be to prepare for take-off.
Question: We know from the passage that the flying car _
Options: (A) has to run on special fuel (B) will replace traditional planes (C) is popular with the rich (D) can shift between two forms

Ex Output:
D