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: For many people in the US,sports are not just for fun. They're almost a "religion".Thousands of sports fans buy expensive tickets to watch their favorite teams and athletes play in person .Other fans watch the games at home,sticking to their TV sets,never missing a game. Many a wife becomes a "sports widow" during her husband's favorite season. Americans' devotion to sports has created a new class:professional athletes. Sports stars often receive milliondollar salaries. Some even make big money by appearing in advertisements for soft drinks,shoes and almost everything. Sports are an important part of American culture. Throughout their school life,Americans learn to play many sports. Many students try out for the school teams. Athletic events at universities attract scores of fans and benefit the whole community. Many people also enjoy noncompetitive activities,like hiking,cycling,horseback riding,camping or hunting. Many sports were imported from other countries. Europeans brought tennis,golf,bowling and boxing to America .Football and baseball came from other Old World games. Only basketball has a truly American origin. Americans export sports fever as well. Satellites broadcast games to sports fans around the globe. NBA is a good example. The names of American superstars like basketball great Michael Jordan have become household words all over the world.
Question: Many a wife becomes a "sports widow" in the US probably because _ .
Options: (A) they are serious in religion (B) they are devoted to sports (C) their husbands stick to sports (D) their husbands are missing

Ex Output:
C

Ex Input:
Article: Wal-Mart is not just the world's largest retailer . It's the world's largest company, which sells in three months what number-two retailer Home Depot sells in a year. Wal-Mart exercises its power for just one purpose: to bring the lowest possible prices to its customers. At Wal-Mart, that goal is never reached. The retailer has a clear policy for suppliers: On basic products that don't change, the price Wal-Mart will pay, and will charge shoppers, must drop year after year. But what almost no one outside the world of Wal-Mart and none of its 21,000 suppliers know is the high cost of those low prices. To survive in the face of its pricing demands, makers of everything from bikes to jeans have had to close US plants in favor of obtaining products from abroad. Indeed, the real story of Wal-Mart, the story that never gets told, is the story of the pressure the biggest retailer constantly applies to its suppliers in the name of bringing us "every day low prices". The giant retailer' s low prices often come with a high cost. Wal-Mart' s pressure can crush the companies it does business with and force them to send jobs overseas. Are we shopping our way straight to the unemployment line? Of course, US companies have been moving jobs offshore for decades, long before Wal-Mart was a retailing power. But there is no question that the chain is helping accelerate the loss of American jobs to low-wage countries such as Thailand. People ask, "How can it be bad for things to come into the US cheaply?" Sure, it's great to have bargains. But you can' t buy anything if you' re not employed. There is no question that Wal-Mart's drive to squeeze out cost has benefited consumers. By now, it is accepted wisdom that Wal-Mart makes the companies it does business with more efficient and focused. Wal-Mart itself is known for continuous improvement in its ability to handle, move, and track goods. It is legendary for forcing its suppliers to redesign everything from their packaging to their computer systems. It is also legendary for quite straightforwardly telling them what it will pay for their goods.
Question: How do suppliers meet the requirements of Wal-Mart?
Options: (A) To sell even more goods in three months. (B) To cut down the employment rate sharply. (C) To charge shoppers at a much higher price. (D) To run the business in a well-organized way.

Ex Output:
D

Ex Input:
Article: For the first time, scientists have found a planet beyond the solar system that not only is the same size as Earth, but has the same proportions of iron and rock, a key step in an ongoing quest to find potentially habitable sister worlds. The planet, known as Kepler-78b, circles a star that is slightly smaller than the sun located in the constellation Cygnus , about 400 light years away. Kepler-78b was discovered last year with NASA's now-idled Kepler space telescope, which detected potential planets as they circled in front of their parent stars, blocking a bit of light. That measurement not only revealed that Kepler-78b was ly small, with a diameter just 20 percent larger than Earth's, but that it was practically orbiting on the surface of its host star. Scientists do not know how the planets ended up so close to their host stars. While the planet's presumably molten surface and hot temperatures make it ill-suited for life, two independent teams of astronomers jumped at the opportunity to follow up the discovery with ground-based measurements to try to determine the density of Kepler-78b. In two papers in this week's journal Nature, the teams report that not only were they successful, but that they came to the same conclusion: Kepler-78b has roughly the same density as Earth, suggesting that it also is made primarily of rock and iron. Kepler-78b is among a dozen or so recently discovered small planets that orbit very close to their parent stars. Kepler-78b, for example, completes an orbit in just 8.5 hours.
Question: Which of the following is right according the passage? _
Options: (A) Kepler-78b is a newly-found planet in the solar system (B) Although ly small, Kepler-78b has many properties that are similar to those of the earth (C) Kepler-78b has the same orbit circling the sun as the earth does (D) The earth is ly larger than Kepler-78b both in size and in diameter

Ex Output:
B