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: Polar bears are born in dens on land and their mother stays with them for the whole winter without eating anything. The mother and the babies come out from the dens around March, _ from a long winter and must immediately go hunting to find food to stay alive. Now, the only hunting they know is to catch seals from floating ice in the open ocean. In March, polar bear mothers and babies have to swim from the land in Spitsbergen to the edge of the polar ice cap. Normally this is a short swim, since in March the polar ice cap is very close to the land, and the polar bears, and even the babies, are good swimmers. However, last year we saw that the polar ice cap had become smaller in size due to global warming. Swimming hundreds of miles, especially when they are hungry and have babies following them, is really hard, and many bears are dying because of starvation. The polar bear population in the Spitsbergen area was once threatened by hunters. In the 1970s, a ban on hunting was imposed and the polar bear population has been steadily increasing from just a few hundred to about 2,000 to 3,000. This was a great success story. However, now, because of global warming, the population is again in danger. If we do not stop making so much carbon dioxide, we will lose these beautiful animals forever. The polar bears are just one example of animals that have become endangered because of man's appetite for energy obtained by burning fossil fuels. All life on earth could be in danger unless we change our ways. What can we do? To reduce the amount of carbon dioxide in the air we must save and make energy without burning coal and oil. Instead, we can use the sun or the wind to generate electricity. We must also cut down on needless driving and turn off things that use electricity when we are not using them. In addition, we have to stop cutting down forests and start planting more trees.
Answer: To catch seals for food.
[A]: Why do the bears swim to the edge of the polar ice cap?

[Q]: Article: According to the National Retail Federation, we spend a record of $18.6 billion on Mother's Day gifts every year that works out to about $152 per mom. If you're looking to step up your gift-giving game, here are a few fun ideas. Of course, your mom will love you no matter what, but a nice gift wouldn't hurt! J. Crew's Poppy King Lipstick, $18.00 Bright color1s are the trend for summer. But if your mom isn't ready for a head-to-toe Technicolor1 look, she can still be on trend with J. Crew's Poppy King lipstick. Called as the "perfect shade" for all skin types, the bright coral is sure to bring a smile to her lips. Standard Phone Case, $ 30. 00 A color1ful case for mom's phone is in fashion and practical. Boutiqueme. net offers a variety of styles and color1s including several ones which can be "mom-o-grammed" with her initials . NOOK Simple Touch With GlowLight, $139.00 In recognition of all the bedtime stories she read to you, why not give mom the perfect e-reader for reading in bed? The NOOK Simple Touch With GlowLight is the first and only e-reader designed specifically for reading in bed. Then Again, by Diane Keaton, published by Random House, $ 26. 00 hardcover/$16. 00 paperback Then Again, a memoir from actress Diane Keaton, is her version of I Remember Mama. One reviewer says that it is a "far-reaching, heartbreaking, ly easily understandable book about mothers, daughters, childhood, aging, joyfulness, love, work.., and show business, too."
Answer: Kids.
[A]: Whom is the text mainly intended for?

[Q]: Article: Preventing obesity and smoking can save lives, but it doesn't save money, reported researchers. "It was a small surprise, for it is against the common belief," said Pieter Van Baal, who led the study. "But it makes sense. If you live longer, then you cost the health system more." The researchers found that from age 20 to 56, obese people racked up the most expensive health costs. But on average, healthy people lived 84 years. Smokers lived about 77 years, and obese people lived about 80 years. Smokers and obese people tended to have more heart disease than healthy people. Therefore in the long run, the thin and healthy group cost about $417, 000, from age 20 on. Smokers cost about $326, 000 and obese people $371, 000. "The result throws a bucket of cold water onto the idea, based on guesswork, that obesity is going to cost trillions of dollars," said Patrick Basham, a professor of health politics. "If we're going to worry about the future of obesity, we should stop worrying about its financial impact," he said. "The benefits of obesity prevention may not be seen immediately in terms of cost saving in tomorrow's budget, but there are long-term gains," said Van Baal. "These are often immeasurable when it comes to people living longer and healthier lives." In the meanwhile, he said that governments should recognize that successful smoking and obesity prevention programs mean that people will have a longer chance of dying of something more expensive later in life. "Lung cancer is a cheap disease to treat because people don't survive very long. But if they are old enough to get Alzheimer's one day, they may survive longer and cost more. We are not advising that governments stop trying to prevent obesity," Van Baal said. "But they should do it for the right reasons."
Answer: Those who are overweight.
[A]:
Among middle-aged people, who may cost the health system most?