In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

[Q]: Article: The idea of sailing west to reach the riches of the East Indies and the Asian mainland was much in fashion with cultured Europeans during the late fifteenth century. Learned people agreed that the earth was round: their only questions were how long and how dangerous would be a trip to reach the Orient. Christopher Columbus, the son of an unknown weaver, and himself a weaver of ambitious dreams, made his historic voyage to the New World in 1492. He didn't go to school very much, but be learned to read and write Spanish during his travels. He also taught himself Latin because all the geography books were written in Latin. Sailing with a tiny fleet of three ships, the Santa Maria and two smaller ships, the Pinta and the Nina and a crew of ninety sailors, be found the thirty-three-day crossing easier than his nearly-decade-long effort to find royal sponsors willing to support it. The trip drew not only on his own skills as an expert ship's captain, but also on his ability to plan such an expedition, obtain governmental approval and financing, and finally, demonstrate its success so that such explorations could continue. He tried for years to get King Ferdinand and Queen Isabella to supply him with ships and money. Finally they agreed, but he made more demands. He wanted to be made a knight, admiral of the Ocean Sea. He wanted to be the viceroy and governor general of all lands he would discover. Also he wanted one-tenth of everything he found of value in the new lands. The explorations that followed Columbus-those of Cabot, Verrazano, Cartier, and many others-benefited from a new maritime technology borrowed from Arab sailors and from a variety of new vessels (,) such as the light-weight caravels employed by Columbus. Sailors also perfected sails and various types of riggings that gave ships added stability and greater maneuverability on the open seas. And when leaving sight of the coast, new navigational aids-charts, compasses, and astrolabes-permitted them to determine their position with some, though not perfect, accuracy. Columbus himself made a total of four voyages to the New World but he did not become rich as he had hoped. At the end of his life he only had a pension the king and queen had given him because he was the first to reach the New World. He spent the last few months of his life in bed because of the pain of arthritis . Columbus not only discovered a New World, but led the way for other explorers.
Answer: The oriental countries.
[A]: What was the dream destination of Europeans in the late fifteenth century?

[Q]: Article: For centuries Stonehenge has mystified and enraptured archaeologists and visitors. So maybe it is not surprising that another monumental wonder from prehistory has been overlooked for so long - even though it is just a mile away. Experts have discovered an 'extraordinary' line of giant stones that dates back more than 4,500 years. The area around Stonehenge is littered with prehistoric sights but the 90 or more stones, lying 3ft underground, have only just been discovered by sophisticated radar equipment towed by radar equipment. The buried monoliths are each up to 15ft tall. Instead of being arranged in a circle as they are at Stonehenge, it is thought they once formed a long standing line. 'We are looking at one of the largest stone monuments in Europe and it has been under our noses for something like 4,000 years,' said Professor Vince Gaffney, from the University of Bradford, one of the archaeologists leading the research. 'It's truly remarkable. We don't think there's anything quite like this anywhere else in the world. This is completely new and the scale is extraordinary." Prof. Gaffney believes the stones may have been planted by the same people who built Stonehenge, but he doubts whether there is a direct link between the two monuments. These stones were placed along a steep slope, cut into a natural dry valley to form a C-shaped feature. Precisely why the stones were put there remains a mystery. The archaeologists believe that at some stage the stones were pushed over. This was not done to damage the monument but rather to preserve whatever it was about the stones that seemed so important. "There was a transformation in the landscape that we do not understand," Prof. Gaffney said. "The stones had significance. These were special places. Societies were organized, as with the great cathedrals, to create these things."
Answer: It is the largest stone monument all over the world.
[A]: What can we know about Stonehenge from the passage?

[Q]: Article: If you watch British television on March 15, you might be surprised to see celebrities wearing funny red noses and joking; around. But don't worry. They're not mad. It's all part of a money raising event called Red Nose Day. Founded in 1985 by two British comedians, the aim of the event is to raise money to fight poverty and injustice in the UK and Africa. Celebrities and public figures support the event by making appearances on comic TV shows. For example, UK Prime Minister David Cameron once appeared in a music video by One Direction, which the band produced for the event. Britons don't just raise money for charitable causes on one day a year, but they do it all year round. One way of doing so is by shopping in charity shops. These small shops sell clothes, books and household goods just like any other shop except that it's all secondhand. There are nearly 10,000 charity shops in the UK. Their business model is simple: Anybody who has things they don't want anymore can donate them to a charity shop, where they are checked for damage, cleaned and priced. The money that is made by selling them is used for a charitable cause. The idea of buying used clothes may sound unpleasant, but for shoppers who have less spending money, it has been a welcome option. Now, shopping at charity shops is also becoming popular with young people looking for alternative fashion. "You can find very unique clothes for a very cheap price. It doesn't bother me that other people may have worn them. I simply wash them before I wear them." said Anne Marie, a 19-year-old from the US. So next time you spot a charity shop, why not go inside? Who knows, you might find a lovely dress for just a few pounds. Even better, you can enjoy wearing it in the knowledge tha t your money helped a good cause.
Answer: To entertain the audience.
[A]:
Why did Cameron appear in One Direction's music video?