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: Most cultures have a feast or festival of light. Each culture celebrates this festival in a different way. The Jewish Festival of Light is called Hanukkah. It usually takes place in December. The story of why Hanukkah is celebrated is very old. It is told that a long time ago, Jewish people called the Macabees were at war with a country called Syria. On the day that the Macabees won the war, they cleaned up their holy place, which is called a temple, because the Syrian people had been living there. They wanted to light their holy lamps to say thank you for the end of the year, but found only a very small amount of oil left over to do that. The Macabees lit the lamps anyway, thinking that they would soon go out. The lamps kept burning for eight days! The Jewish people celebrate Hanukkah every year by lighting a candlestick that has eight candleholders. Every night a new candle is lit so that on the eighth night, all eight candles stand together. Presents are given at this time and money is given to the poor. The Christmas story is not quite as old as the Hanukkah story, but it is also very old. Christmas is the time when Christians around the world celebrate the birth of Jesus Christ. It is believed that Christ was born in a stable. On the night of his birth, angels, shepherds and three wise men visited him. The wise men brought gifts with them. This is a happy and busy time of the year. Homes are decorated with Christmas trees and decorations. It is a time for being with the family. Families travel long distances to gather at Christmas. Lots of lights are put up everywhere. This is to show that Jesus is the"Light of the world"who came to bring peace to all people. Lanterns are another form of light. In China, the Lantern Festival goes back to the Han Dynasty. One emperor heard that Buddhist monks would light lanterns to _ Buddha on the 15th day of the 1st lunar month;so he also ordered to light lanterns in the imperial palace and temples to show respect to Buddha on the day. Later, the rite developed into a grand festival among common people. During the festival, parks become a sea of lanterns. Sometimes streets are blocked off and lanterns are put down on each side to make a hallway of lanterns. People also hang lanterns in their gardens, outside their houses or on boats. It is believed that the lanterns will guide visitors and the spirits of ancestors to the celebrations. The Lantern Festival is a time for families to reunite.
Question: What is the theme shared by all the three festivals?
Options: (A) The decoration of the world. (B) The wish for peace and happiness in the world. (C) Celebrating the end of the year. (D) Inviting the spirits of the ancestors to the celebration.

Ex Output:
B

Ex Input:
Article: Haikou--A shark was killed after being dragged to shore at Yalong Berth beach in Sanya, South China's Hainan Province, on Sunday afternoon. It was the first time a shark had been caught in the beach area, a popular tourist site in Hainan. Local fishermen said they caught the 3-meter-long, l-ton shark by chance when they were fishing in sea water 1,000 metres deep near the beach. Police temporarily protected the shark while oceanographers decided whether it was a species belonging to State protection. Fishermen later killed and sold the shark after oceanographers _ that it was a whale shark and therefore not under State protection. The shark was believed to have drifted into the area from the deep sea due to strong waves caused last week by Typhoon Imbudo.It had no open injuries but experts said they believed it suffered from internal bleeding. Local police officer Fu Chenggeng said beachgoers should not feel threatened by sharks because the fish never attack human beings on their own initiative.Fu said he had never heard of any shark attacks at the Sanya beach since he first started work there eight years ago. However, police said they will improve the security system to safeguard tourists' safety on the beach.
Question: A possible title of the article should be _ .
Options: (A) Tourists in Danger (B) Killing Whale Shark (C) Shark Caught in Beach Area (D) Whale Shark in Danger

Ex Output:
C

Ex Input:
Article: Many of you may wonder what else to do besides watching TV or surfing the Internet on weekends.Why not have a picnic? Junior 2 students at Beijing No.4 Middle Schoo1 had a "King of cooking" competition* Earlier this month,about 300 students at the schoo1 went to a suburb of Beijing to have the contest.They were divided into 24 groups.Each group had buyers,slicers ,firemakers.washers and cooks. Firemakers faced the most problems during the time.Some of them had no idea how to keep fire burning. "The fire kept going out.we had to blow at the sparks and put on corn leaves and old newspapers,"said Wu Mofei,13. "It took us an hour to make the fire.Our eyes had tears from all the smoke and our faces became dirty,"he added. When the fires were finally made,the cooks became the busiest people.Huang Lanye made fried celery and ham pickled cabbage and tomato soup. She was proud of her work."It's my first time making Chinese dishes.My group members ate them up in minutes and said they were as delicious as what their parents made!" said the 14-year-old girl. Finally over ten students were titled "King of Cooking".Wang Xiaoyue,14,was one of them."My group got a mark of 98 at the competition,''Wang said."We have 1earned a lot while having so much fun! We are the best!" Beijing No.4 Middle School has been organizing similar fun activities for six years."we want to give students a chance to get real life experiences and 1earn how to work as a team,''said Jia Dong,who works for the school's student affairs office.
Question: The text mainly tells us----.
Options: (A) a "King of Cooking" competition organized by Senior 2 students at Beijing No.4 Middle School (B) a picnic organized by Junior 2 students at Beijing N0.4 Middle School (C) a "King of Cooking" competition organized by Junior 2 students at Beijing No.4 Middle School (D) after-school activities of students at Beijing No.4 Middlle School

Ex Output:
C