input: Please answer the following: Write a multi-choice question for the following article: Article: It takes two to duet , and one question for scientists is how these coordinated performances arise -- in birds. Are they the result of cooperation, a way in which one pair signals to others that they've got it together? Or are they the result of conflict, evolving to avoid one partner's song interfering with the other's? A study of duetting in Peruvian warbling antbirds suggests that it might be a little of both, and that context is everything. Joseph A. Tobias and Nathalie Seddon of the University of Oxford show in Current Biology that sexual conflict can cause the female of a pair that normally cooperates to "jam" the male's song by singing over it. The researchers exposed antbird pairs to recorded songs of other antbirds and monitored the songs the pairs produced. In one experiment, they played the songs of an intruding pair. In this case, the resident pair "both are likely to lose their territory, so both should cooperate," Dr. Tobias said. And they do. They produce a coordinated duet that in effect tells the intruders to keep away. But when the researchers played the song of a single female, the pair behaved differently. "You'd expect the resident female to be highly motivated to defend her position in the partnership," Dr. Tobias said. And that's what occurs. The male sings its heart out, flirting with the single female, and the female of the pair does its best to interfere with the song by singing over it, apparently to make her mate less attractive to the other female. "It's clear that the male doesn't like what she's doing," Dr. Tobias said. The behavior "breaks up what is otherwise a very cooperative situation into a more complicated signal," he added. It's the first evidence of this kind of signal jamming among pairs, Dr. Tobias said. And in that it leads the male to alter its song to avoid the female's interfering notes, it shows that this kind of conflict could, over a long period, drive the evolution of coordinated song.
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output: Question: How did the researchers conduct the experiment?Options:A They put the antbird pairs back to nature and observe them.B They played different recorded songs of other antbirds.C They put an antbird to the other's territory and observed.D They played the songs of an intruding pair.Answer:B

Please answer this: Write a multi-choice question for the following article: Article: Alan took an early interest in gardening---first on his grandfather's Yorkshire allotment in Ilkley, and then in his parents' back garden. Small polythene greenhouses appeared in the back garden, and cacti were bought from church markets. Alan left school at fifteen with one 'O' level in Art and took a job as an apprentice gardener in Ilkley Parks Department nursery, studying for his City and Guilds in Horticulture in the evening. He went on to horticultural college at Oaklands in Hertfordshire where he studied for one year full-time, being awarded the National Certificate in Horticultural. This was followed by three years at the Royal Botanic Gardens, Kew, resulting in the award of the Kew Diploma. After two years as supervisor of staff training at Kew, Alan entered journalism where he became first a gardening books editor, and then Deputy Editor of Amateur Gardening magazine. He appeared regularly on BBC Radio and Television in programs such as Nationwide , Breakfast Time, Open Air, Pebble Mill, Songs of Praise, Titchmarsh's Travels, and the Chelsea Flower Show. He presented the 100th edition of The Word for Channel 4, and hosted the quiz show Ask the Family. Gardeners' World and the hugely popular Ground Force, second only to Easterners in the BBC1 ratings, are broadcast as far as Australia, New Zealand and North America. After leaving both programs, Alan worked on two other series for the BBC to be transmitted in 2003 and 2004, one of them a landmark series on the natural history of Britain. Alan writes for the Daily Express, Sunday Express, Radio Times and BBC Gardeners' World magazine, and has more than thirty gardening books to his credit. His four novels, as well as a book about his own life, have been best sellers. Alan, 53, gardens organically, and lives with his wife, two daughters and a medley of animals.
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Answer: Question: According to this passage, we can learn that _ .Options:A Alanaccepted little educationB Alan wrote many books about foodC Alan had never been marriedD Alan was first a gardening books editorAnswer:D

input question: Write a multi-choice question for the following article: Article: Harry Houdini was a man who astonished and attracted many people during his life. Whether he was escaping from a locked box or making things disappear and reappear, he surely was entertaining. People thought that he must truly have some supernatural powers, but in fact, what Harry really had was drive. Harry was born in Budapest, Hungary, in 1874. His real name was Ehrich Weiss, the third of five children. His family moved to Wisconsin not long after his birth and when he was nine, he was tying ropes all over his backyard and learning amazing tricks to show his friends and neighbors. He visited the local locksmith, and when he had reached his teens he could pick almost any lock that was made. He also learned how to do card tricks. He and his brother, Theo, would often entertain at local parties and clubs for extra money. When Ehrich was 16, he came across a book that would actually change his life: the biography of France's greatest magician, Jean Eugene Robert-Houdin. It showed Ehrich that his hobby of magic and tricks could also be a career. Immediately, he changed his name to Harry Houdini. He and Theo headed out to make a living as magicians. In 1893, they performed at the Chicago World's Fair, and after that they traveled around giving magic shows for anyone willing to listen and pay. Theo grew restless, however, as the jobs became scarce, so he left. His timing was perfect since Harry had just fallen in love with a lovely woman named Bess who was just the right size for slipping in and out of the trunk they used in their magic tricks. They married immediately and then off they went, traveling with circuses and other road shows. Harry learned more and more tricks and spent much of his time reading and studying all kinds of locks, especially handcuffs. However, no matter what tricks they did or how hard they tried, Bess and Harry were not doing well. They tried to sell their shows for seven years and finally, in desperation, they went to Europe. It was the right move. Harry's persistence and...???
output answer:
Question: It can be inferred that Houdini's death was _ .Options:A a plotted murderB another performanceC a legendD an accidentAnswer:D