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 Q]: Article: Coffee has a history dating back to at least the 9th century and has been a catalyst for social interaction across cultures and eras. Originally discovered in Ethiopia, coffee beans were brought into the Middle East by Arab traders, spreading to Egypt, Yemen, Persia, Turkey, and North Africa by the 15th century. Muslim merchants eventually brought the beans to the thriving port city of Venice, where they sold them to wealthy Italian buyers. Soon, the Dutch began importing and growing coffee in places like Java and Ceylon (largely through slave labor), and the British East India Trading Company was popularizing the beverage in England. Coffee spread across Europe and even reached America. Where there has been coffee, there has been the coffeehouse. From the 15th century Middle Eastern establishments where men gathered to listen to music, play chess, and hear recitations from works of literature, to Paris' Cafe le Procope where luminaries of the French Enlightenment such as Voltaire, Rousseau, and Diderot came to enjoy a hot cup of joe, coffeehouses have traditionally served as centers of social interaction, places where people can come to relax, chat, and exchange ideas. The modern coffee shop is modeled on the espresso and pastry-centered Italian coffeehouses that arose with the establishment of Italian-American immigrant communities in major US cities such as New York City's Little Italy and Greenwich Village, Boston's North End, and San Francisco's North Beach. New York coffee shops were often frequented by the Beats in the 1950's. It wasn't long before Seattle and other parts of the Pacific Northwest were developing coffee shops as part of a thriving counterculture scene. The Seattle-based Starbucks took this model and brought it into mainstream culture. Although coffeehouses today continue to serve their traditional purpose as lively social hubs in many communities, they have noticeably adapted to the times. Rediscovering their purpose as centers of information exchange and communication, many coffee shops now provide their customers with internet access and newspapers. It has become extremely common to see someone sitting at a Starbucks listening to music or surfing the web on his or her laptop. Coffee stores today also maintain a fairly identifiable, yet unique aesthetic: wooden furniture and plush couches, paintings and murals drawn on walls, and soft-lighting combine to give coffee shops the cozy feeling of a home away from home. Today, big business retail coffee shops are expanding quickly all over the world. Starbucks alone has stores in over 40 countries and plans to add more. Despite its popularity, Starbucks has been criticized and labeled by many as a blood-sucking corporate machine, driving smaller coffee shops out of business through unfair practices. This has even spawned an anti-corporate coffee counterculture, with those subscribing to this culture boycotting big business coffee chains. Increasingly popular coffee stores such as The Coffee Bean and Tea Leaf are also giving Starbucks some stiff competition. In any case, it seems pretty clear that coffee has weaved itself into the fabric of our consumer-oriented culture.
Question: We can infer from the passage _ .
Options: (A) Starbucks has beaten all the competitors (B) there are no changes in the development of coffee culture (C) the taste of coffee has changed a lot (D) Starbucks has some effect on the development of coffee culture
[EX A]: D

[EX Q]: Article: Social media is one of the fastest-growing industries in today's world. A study conducted by the US think tank Pew Research Center showed that 92 percent of teenagers go online daily. The wide spread of social media has changed nearly all parts of teenagers' lives. Changing relationships High school student Elly Cooper from Illinois said social media often reduces face-to-face communication. "It makes in-person relationships harder because people give attention to their phones instead of their boyfriends or girlfriends," Cooper said. There's also a greater possibility of things getting lost in translation over social media. "If half of your relationship is over social media, you don't really know how the other person is reacting," Sienna Schulte, a junior student from Illinois, said. Yet, some people believe social media has made it easier to start relationships with anyone from anywhere. Beth Kaplan from Illinois met her long-distance friend through social media. He currently lives in Scotland, but they're still able to frequently communicate with one another. "I can feel close to someone that I'm talking to via FaceTime," Kaplan said. Wanting to be "liked" The rise of social media has changed the way teenagers see themselves. The 19-year-old Essena O'Neill announced on the social networking service Instagram that she was quitting social media because it made her obsessed with appearing perfect online. Negative comments also can do great damage to a teenager's self-esteem . In particular, anonymous social media apps such as Yik Yak may provide opportunities for cyber bullying . The app allows users within 5 miles (8 km) to create and add comments to everything. Teenagers who get negative comments on these sites can't help but feel hurt. Opening new doors However, Armin Korsos, a student from Illinois, takes advantage of the comments he receives over social media to improve his videos on the social networking site Youtube. "Social media can help people show themselves and their talents to the world in a way that was never possible before," Korsos said. But Korsos recognizes that social media has become a distraction . "Social media, though it helps people connect with their friends and stay updated, is not all necessary."
Question: What is the article mainly about?
Options: (A) The major problems with social media. (B) The impact of social media on teenagers. (C) How teenagers benefit from social media. (D) Why social media appeals so much to teenagers.
[EX A]: B

[EX Q]: Article: Russia and the United States have completed the largest spy exchange since the Cold War.On Friday, at an airport in Vienna, Austria, an American plane and a Russian plane landed, parked side by side and exchanged _ . The United States freed ten admitted Russian agents.The men and women were arrested in late June and pleaded guilty on Thursday. In exchange, Russia freed four Russians serving prison sentences on charges of spying for the West.The men include Igor Sutyagin, an armed researcher who always denied the charges.Some considered him a political prisoner. The United States deported nine Russian and an American citizen born in Peru.Some raised children while living quiet lives as married couples. Russia's Foreign Ministry praised the exchange, saying, "The action improved Russian-U.S.relations." The group was accused of trying to gain information on American nuclear weapons, foreign policy and politics for the SVR -- Russia's foreign intelligence service. The ten were only charged with plotting to act as undeclared foreign agents.They were not charged with the more serious crime of spying, so the extent of their success as spies is not clear. One of the Russians, Anna Chapman, drew attention with her looks and stories of her New York party life.Hr lawyer, Robert Baum, said she had not passed secret information to Russia or received any payment.He also said, "She was accused of communicating with a Russian official through a laptop to laptop communication, without the government specifying the nature of the communication."
Question: The way both countries are handling the issue suggests that _ .
Options: (A) neither side is interested in starting a fight (B) neither side is in need of spies now (C) the two countries are finding faults with each other (D) the two countries are in a cold war now
[EX A]:
A