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.

Article: New evidence shows that getting enough Vitamin D may be the most important thing you can do for your health. You know the usual prescription for good health: a balanced diet with lots of fruits and vegetables, regular exercise, no smoking.Now add this: Spend a little more time in the sun. Huh? That may sound like medical .After all, we've been warned for decades about the dangers of the sun: wrinkles, age spots and the increasing threat of skin cancer.But new and impressive medical evidence suggests that sunlight is beneficial.The vitamin D it our bodies to make may prevent cancer, protect against heart disease and ward off a long list of disorders such as multiple sclerosis, rheumatoid arthritis, diabetes and gum disease.It is even showing promise as a treatment for heart disease and some cancers. Long recognized as vitally important for bone building (it's needed for calcium absorption), vitamin D has now achieved superstar status among nutrients.While all doctors may not agree, many experts are confident enough of its wide-ranging powers to urge that we get much more of it, from the sun and from supplements, as even the best diet in the world may not give us enough.
Answer: To do exercise now and then.
Which of the following is NOT the usual way of keeping healthy?

Article: Crystal Ear One day a friend asked my wife Jill if I wanted a hearing aid. "He certainly does,"replied Jill. After hearing about a remarkable new product, Jill finally got up the nerve to ask me if I'd ever thought about getting a hearing aid. "No way,"I said. "It would make me look 20 years older.""No, no"she replied. "This is entirely different. It's Crystal Ear!" Jill was right. Crystal Ear is different ---- not the old-styled body worn or over-the-ear aid, but an advanced personal sound system so small it's like contacts for your ears. And Crystal Ear is super-sensitive and powerful, too. You will hear sounds your ears have been missing for years. Crystal Ear will make speech louder, and the sound is pure and natural. I couldn't believe how tiny it is. It is smaller than the tip of my little finger and it's almost invisible when worn. There are no wires, no behind-the-ear device. Put it in your ear and its-ready-to-wear mold fits comfortable. Since it's not too loud or too light, you may even forget that you're wearing it! Use it at work or at play. And if your hearing problem is worse in certain situation, use Crystal Ear only when you need it. Hearing loss, which is typically prior to teenage years, progresses throughout one's lifetime. Although hearing loss is now the world's number-one health problem, nearly 90 percent of people suffering hearing loss choose to leave the problem untreated. For many millions, treating hearing loss in a conventional way can involve numerous office visits, expensive testing and adjustments to fit your ear. Thanks to Crystal Ear, the "sound solution"is now convenient. Almost 90 percent of people with mild hearing loss, and millions more with just a little hearing dropoff, can be dramatically helped with Crystal Ear. Moreover, its superior design is energy-efficient, so batteries can last months. Crystal Ear is now available to help these people treat their hearing loss with a small hearing amplifier .
Answer: It would make him look like an old man
Why did the writer refuse to wear a hearing aid at first?

Article: London taxis, with their friendly drivers who actually know where they are going, are ranked best in the world, according to an annual taxi survey. The survey by travel websitehotels.comfound London taxis, despite being the most expensive, beat rivals across the globe to head the list for the third consecutive years, scoring a total of 59 percent in votes on several categories by travelers. London taxi drivers were voted both friendliest and most knowledgeable. Drivers in the English capital must pass a _ examination called The Knowledge to earn their taxi license. New York's yellow taxis came second in the list, scoring 27 percent which was up 10 percentage points from last year even though Manhattan's cab drivers tied with Parisian taxi drivers as the rudest. Travelers said New York had the most convenient taxis. Taxi drivers in Rome were voted the worst drivers in the world with almost one in 10 travelers thinking the Italian capital had the world's worst taxi drivers when it came to the quality of driving. "Traveling by taxi is one of the first experiences that many travelers have upon arrival in a new city. In fact, the research found that cabs are by far the most popular method of traveling from the airport to their hotel," a spokesman for hotels.comsaid in a statement. The global survey scored city based taxis for their levels of cleanliness, value, quality of driving, knowledge of the area, friendliness, safety and convenience. Rounding out the top five were Tokyo with a total score of 26 percent, Berlin with 17 percent, and Bangkok famed for its tuk-tuks scoring 14 percent. The survey for hotels.com, part of the Expedia group, was conducted among over 1,900 travelers between May 11-28 this year.
Answer: They drive fastest.
Which of the following about London's taxi drivers is wrong?