In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.

Example Input: Article: YOU probably think you know about London's problems. The people are unfriendly, it's way too expensive, and the food is terrible - so why do so many tourists flock there? London was named the world's most popular city between July and September 2013. It _ other world-famous cities such as New York and Paris, welcoming 4.9 million visitors, according to the UK Office for National Statistics. Amazingly, this was an increase of almost 19.5 percent on 2012 - the year when the Olympics happened in summer. So can London's success be explained? Well, maybe. As the English writer Samuel Johnson once said, "when a man is tired of London, he is tired of life". London life is often crazy and expensive, but if you can think of something, you can probably do it there. Anywhere in the city, you can often look around a great museum such as the British Museum, watch a concert at a historic venue like the Royal Albert Hall, or dance the night away in a cool nightclub such as Fabric. And it's not just about culture - there are also world-famous sporting venues around the city. Many tourists like to watch soccer matches at stadiums such as Chelsea's Stamford Bridge, Arsenal's Emirates Stadium, or Tottenham's White Hart Lane. Tourists even came to watch British tennis player Andy Murray's famous victory at the Wimbledon tennis tournament in 2013. Yes, but what about the food? Well, even if you don't like British food - and if you've never had real fish and chips, or a summer pudding, then perhaps you should wait until you've tried them - there is plenty of great food from all over the world available in London's many restaurants. London, like many of its buildings, has a long history, but also never lacks a vibrant pulse . All over the city, history and modernity come together to make it an essential place for tourists to discover.
Question: What is the author's main purpose in writing the article?
Options: (A) To show the effects of the 2012 London Olympics. (B) To analyze why London appeals to tourists. (C) To compare London with other world-famous cities. (D) To talk about common problems in London.
Asnwer: B
Example Output: Yes

Example Input: Article: Top 5 Must See Places in Beijing Beijing is an old capital city with a lot of tourists attractions. What is the most representative place in Beijing? The answers are various. Here are the Top 5 Must See Places in Beijing. 1. Forbidden City The Forbidden City is the ideal place for you to begin your exploration of Beijing. Make sure to wear comfortable shoes as you have to walk a lot! A multilingual guide recorder is recommended, as it can tell you the stories behind the palace. Opening Hour: 8:30-17:00 Entrance Fee: RMB 60 2. Tian'anmen Square Lying in the heart of Beijing City, it is the place for massive parades and gathering. It boasts of the largest square of such kind in the world. At sunrise and sunset the raising and lowering ceremony of the Chinese National Flag is well worth seeing. Ticket fees: Free Opening Time: Whole Day 3. Great Wall Most of the sections of the Great Wall in Beijing are well-preserved, and the most famous section is Badaling. For the Great Wall hiking, get ready for strong footwear. For hot weather, please also prepare sunblock, sunglasses and water. Badaling Great Wall: Ticket Fees: RMB40 (Nov. 01 to Mar. 31); RMB 45 (Apr. 01 to Oct. 31) Open Hours: 6:40 to 18:30 4. Summer Palace Regarded as the largest imperial garden in China, the Summer Palace is in fact a park-styled royal retreat. With masterly design and artistic architecture integrating the highlight of Chinese garden arts, it has earned a title of "Royal Garden Museum". Open Time: 6:30-20:30 Ticket Fee: RMB 40 (low season) / RMB 50 (peak season during the holidays) 5. Temple of Heaven The Temple of Heaven worked as sacrificial compound buildings for the Ming and Qing emperors. What's the intriguing by-production of the temple is that if you enter the Temple of Heaven in the early morning, you can find many people doing all types of Kungfu, Taiji, dancing and other morning exercises. Open Time: 6:00-21:00 Ticket Fee: RMB 35
Question: At 5:45 in the morning, what could one enjoy?
Options: (A) The artistic architectural design of the Summer Palace. (B) Wandering about on the Tian'anmen Square. (C) The sunrise on the Badaling Great Wall. (D) Exercises of Kungfu and Taiji in the Temple of Heaven. [:Zxxk.Com]
Asnwer: B
Example Output: Yes

Example Input: Article: It was December 25, 1914, only 5 months into World War I. German, British, and French soldiers, already sick and tired of the senseless killing, disobeyed their superiors and started socialising with "the enemy" along two-thirds of the Western Front. German troops held up Christmas trees with signs, "Merry Christmas". Thousands of troops ran across the battlefields covered with dead bodies. They sang Christmas songs, exchanged photographs of loved ones back home, shared food and even played football. Soldiers hugged men they had been trying to kill a few short hours before. They agreed to warn each other if their officers forced them to fire their weapons, and to aim high. Fear ran through the military leaders on both sides. They felt that their power was being challenged: soldiers declaring their brotherhood with each other and refusing to fight. Generals declared this unexpected peacemaking illegal and said that participating soldiers would face a military court. Those found guilty would be imprisoned or even shot. By March 1915 the socialising movement had been destroyed and the killing machine was back in full operation. Over the next three years more than fifteen million people died in the war. Not many people have heard the story of the Christmas Truce . On Christmas Day, 1988, a local radio host in Boston played "Christmas in the Trenches", a song about the Christmas Truce, several times and was _ by his listeners' response. Thousands of people called in, praising the song, with many moved to tears by the amazing events it described. You can probably guess why the callers were in tears. The Christmas Truce story goes against most of what we have been taught about people. It lets us see the world as it can be and says, "This really happened once." It shows us the potential we have as humans, and contradicts all of those TV and newspaper stories that tell us how mean and heartless people are. It is like hearing that our deepest wishes really are true: the world really can be different.
Question: The soldiers began socialising with the enemy because _ .
Options: (A) they couldn't bear the meaningless killing (B) it was the best way to avoid being killed (C) they feared that they would be caught (D) their enemies were from similar backgrounds
Asnwer: C
Example Output:
No