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.

[Q]: Article: While English is getting more important in our schools, Chinese has become popular among foreign kids. But Chinese can be more difficult to learn. At least 16-year-old Piao Chenglong thinks so. "English is easier for me. Chinese characters have too many strokes ," said Piao. "But I want to learn it. I want to study at Peking University when I grow up." Piao is from South Korea. He came to China in 2008. In South Korea, there are more than 300000 Chinese learners like Piao. Some South Korean students begin to learn to write the language on their first day at school. To help students learn Chinese, South Korea holds speaking competitions for high school students every year. Chinese isn't just popular in South Korea. People from all the world want to learn it. The Chinese Ministry of Education says that nearly 130 million people from 85 countries are learning Chinese. This number will be increasing to 800 million in the coming years. In America, Chinese is the second most popular foreign language after Spanish. Some American middle schools have Chinese classes. Students learn to make jiaozi and tie Chinese knots . Some even try to write and draw in Chinese way! People want to learn Chinese because China is becoming such an important country. Foreign countries want to understand China better to help them with business. The Chinese government is also helping the world learn Chinese. It has sent more than 200 Chinese teachers to more than 60 countries in the world. Many more Confucious College will be set up in the world. These colleges will teach Chinese to foreign students.
Question: Which of the following is the topic sentence for the text?
Options: (A) Chinese has become popular among foreign kids. (B) Chinese can be more difficult to learn. (C) In America, Chinese is the second most popular foreign language after Spanish. (D) Students learn to make jiaozi and tie Chinese knots.
[A]: A

[Q]: Article: The sharing economy has grown in recent years to include everything from apartment sharing to car sharing to community tool sharing. Since 2009, a new form of sharing economy has been emerging in neighborhoods throughout the US and around the world---- Little Free Library. The libraries are boxes placed in neighborhoods from which residents can withdraw and deposit books. Little Free Libraries come in all shapes and sizes. Some libraries also have themes, focusing on books for children, adults, or tour guides. In 2009, Tod Bol built the first Little Free Library as a gift to his mother, who was a devoted reader. When he saw the people of his community gathering around it, exchanging conversation as well as books, he knew he wanted to take his simple idea further. "I think Little Free Libraries open the door to conversations we want to have with each other," Bol said. Since then, his idea has become a movement, spreading from state to state and country to country. According to Little FreeLibrary.org, there are now 18,000 of the little structures around the world, located in each of the 50 US states and 70 countries in Europe, Africa and Asia. The Internet has helped to spread Little Free Libraries. But an Atlantic article says the little structures serve as a cure for a world of e-reader downloads. The little wooden boxes are refreshingly physical and human. For many people, the sense of discovery is Little Free Libraries' main appeal. "A girl walking home from school might pick up a graphic novel that gets her excited about reading; a man on his way to the bus stop might find a volume of poetry that changes his outlook on life," says the Atlantic article. "Every book is a potential source of inspiration".
Question: How do Little Free Libraries get their books?
Options: (A) The communities bought them. (B) Tod Bol donated them. (C) US government provided them. (D) Citizens shared them.
[A]: D

[Q]: Article: Exited about landing your first job after graduation? Good, work hard and get learning. Don't forget to listen to young professional's advice about the "real world" you're stepping into. 1. Keep up with current events. In school, it's easy to live in a cocoon, where you focus on studies and social life. But in the working world, not knowing who Alan Greenspan is or why North Korea is in the news so often can lead to potentially embarrassing conversations. 2. Consider living with parents, even if you have a job. Think it over before you rule it out. Not only can you save a lot of money by living at home, but your parents may provide emotional support that you may need. They can help pave the way for you to move once you are settled into your new life. 3. Don't compare yourself to other people your age. Young adults are good at putting up impressive appearance, but you don't really know what their lives are like. Those who seem to have the perfect job may spend part of the day making coffee and picking up boss's dry-cleaning. 4. Pay attention to small jobs as well as big ones. Don't stress if, in your first job or internship , you get a lot more face time with the copy machine than with clients. You may wonder why you spent so much time studying in school only to do such tasks. But you may also be learning more about your new professional than you realize. 5. Know when it's time to move on. Give a new job a chance, perhaps a year, before you make up your mind to leave, especially if it's your first job out of school. When you're sure that the job isn't for you, figure out what you want to do and how to do it. Zhang Yue, 26, spent three years working as an accountant in Shanghai before becoming a financial planner. He loves his new job and spent 10 months searching for it: "To find something you really want to do takes time."
Question: By mentioning Alan Greenspan, the author wants to show _ .
Options: (A) how he succeeded (B) why he is important to the world nowadays (C) it is necessary to know key figures (D) he has a strong effect on the world
[A]:
C