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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.
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Article: A new research shows that in Britain more and more people are returning to the old tradition that the whole family have a meal at table. Worrying about the obesity and breakdown of a family, people change their eating habits so greatly, according to analysis. They find the number of the family having a meal together increases by 5% from 2002 to 2004, and most people who have meals with their family come from the rich social class. The new discovery makes doctors and the people struggling against obesity extremely excited. Giving up the tradition that the whole family have a meal together is exactly one of the reasons for a series of problems including children's overweight. If a child has a meal in front of the television or the computer alone, he will often eat some fast food. Jason Collins is one of the persons returning to the old tradition. Collins is a manager of a bake house. He finds after he gets used to having a meal at home with his child, the child becomes much more obedient . Dr. Jin is a child psychologist, and she expresses welcome to this result of the study. She says it can make parents have a very good chance to chat with the child when the whole family have a meal together.
Answer: Worrying about health and family problems.
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What makes people change their eating habit back to the old tradition in Britain?

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Article: Researchers who helped discover a new species of Mexican butterfly are offering to sell the naming rights to raise money to fund more research. Co-discoverer Andrew Warren is hoping to raise at least $50,000 by auctioning off the rights to name the 4-inch "owl eye" butterfly, which lives in Sonora, a Mexican state bordering Arizona. "That would support at least two years of research for our team down in Mexico," Warren said. "Money goes a long way down here in Mexico." According to the scientific tradition, discoverers of a new species have the say in naming it. In recent years, some discoverers have auctioned off their naming rights to raise money. Warren said the amount being sought for the butterfly is not out of the question, noting that naming rights for a new monkey species brought in $650,000 two years ago. A group of 10 new fish species that went on the naming auction block at the same time earlier this year brought in a total of $2 million. The butterfly discovered by Warren and researcher George Austin ranges as far north as Mexico. The butterfly was actually in a collection, misidentified as an example of another new species, at the McGuire Center for Lepidoptera and Biodiversity at the Florida Museum of National History in Gainesville, said Warren. They soon began the hard process of determining that it was indeed a "new" model of butterfly. After checking photos and comparing it with other known species, they determined it was a separate species.
Answer: Near the US-Mexico border.
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Where did the researchers discover the new species of butterflies?

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Article: China is the country with the largest population in the world. Too many people cause many problems such as food problem. And today, China's population is still growing very fast. So in order to control the population, China has formulated the policy of family planning, that is late marriage, late childbirth and having fewer but healthier children. Men of 22 years old and women of 20 years can get married. If a man of 25 or over 25 gets married with a wo-man of 23 or over 23 , their marriage is late marriage. Childbirth by a woman at the age of 23 or late is a late childbirth. The country encourages people to have only one child. Family planning is a useful policy to control China's population. And it is still needed in China in the following years.
Answer: China's family planning
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What is the passage about?