Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Few laws are so effective that you can see results just days after they take effect. But in the nine days since the federal cigarette tax more than doubled----to $1.01 per pack---smokers have jammed telephone 'quit lines' across the country seeking to kick the habit. This is not a surprise to public health advocates. They've studied the effect of state tax increases for years, finding that smokers, especially teens, are price sensitive. Nor is it a shock to the industry, which fiercely fights every tax increase. The only wonder is that so many states insist on closing their ears to the message. Tobacco taxes improve public health, they raise money and most particularly, they _ people from taking up the habit as teens, which is when nearly all smokers are addicted. Yet the rate of taxation varies widely. In Manhattan, for instance, which has the highest tax in the nation, a pack of Marlboro Light Kings cost $10.06 at one drugstore Wednesday. In Charleston, S.C., where the 7-cent-a-pack tax is the lowest in the nation, the price was $4.78. The influence is obvious. In New York, high school smoking hit a new low in the latest surveys----13.8%, far below the national average. By comparison, 26 % of high school students smoke in Kentucky, Other low-tax states have similarly depressing teen-smoking records. Hal Rogers, Representative from Kentucky, like those who are against high tobacco taxes, argues that the burden of the tax falls on low-income Americans "who choose to smoke." That's true. But there is more reason in keeping future generations of low-income workers from getting hooked in the first place. As for today's adults, if the new tax drives them to quit, they will have more to spend on their families, cut their risk of cancer and heart disease and feel better. Options: A the price of cigarettes B the rate of teen smoking C the effect of tobacco tax increase D the differences in tobacco tax rate Answer: C the effect of tobacco tax increase Question:
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The answer is:
The text is mainly about _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Almost every machine with moving parts has wheels, yet no one knows exactly when the first wheel was invented or what it was used for. We do know, however, that they existed over 5,500 years ago in ancient Asia. The oldest known transport wheel was discovered in 2002 in Slovenia. It is over 5,100 years old. Evidence suggests that wheels for transport didn't become popular for a while, though. This could be because animals did a perfectly good job of carrying farming tools and humans around. But it could also be because of a difficult situation. While wheels need to roll on smooth surfaces, roads with smooth surfaces weren't going to be constructed until there was plenty of demand for them. Eventually, road surfaces did become smoother, but this difficult situation appeared again a few centuries later. There had been no important changes in wheel and vehicle design before the arrival of modem road design. In the mid-1700s, a Frenchman came up with a new design of road--a base layer of large stones covered with a thin layer of smaller stones. A Scotsman improved on this design in the 1820s and a strong, lasting road surface became a reality. At around the same lime, metal hubs (the central part of a wheel) came into being, followed by the pneumatic tyre in 1846. Alloy wheels were invented in 1967, sixty years after the appearance of tarmacked roads . As wheel design took off, vehicles got faster and faster. Options: A Few knew how to use transport wheels. B Humans carried farming tools just as well. C Animals were a good means of transport. D The existence of transport wheels was not known. Answer: C Animals were a good means of transport. Question:???
output answer: What might explain why transport wheels didn't become popular for some time?

Please answer this: Write a multi-choice question for the following article, with the given choices and answer: Article: The triathlon promises to be one of the most popular Olympic sports.Recently it has drawn huge crowds attracted by athletes swimming 1,500m,cycling 40km,then running 10km without stopping.But what makes an attractive 17yearold girl give up everything for the doubtful pleasure it offers? Melanie Sears has not yet learnt those oftenrepeated phrases about personal satisfaction,mental challenge and higher targets that most athletes use when asked similar questions."You swim for 1,500m,then run out of the water and jump on your bike,still wet.Of course,then you freeze.When the 40km cycle ride is over,you have to run 10km,which is a long way when you're feeling exhausted.But it's great fun,and all worth it in the end," she says. Melanie entered her first triathlon at 14 and she won the junior section.Full of confidence,she entered the National Championships,and although she had the second fastest swim and the fastest run,she came nowhere."I was following this man and suddenly we came to the sea.We realised then that we had gone wrong.I ended up cycling 20 kilometres too far.I cried all the way through the running." But she did not give up and was determined that she never will."Sometimes I wish I could stop,because then the pain would be over,but I am afraid that if I let myself stop just once,I would be tempted to do it again."Such doggedness draws admiration from Steve Trew,the sport's director of coaching."I've just been testing her fitness," he says, "and she worked so hard on the running machine that it finally threw her off and into a wall.She had given it everything,and she just kept on." Melanie was top junior in this year's European Triathlon Championships,finishing 13th."I was almost as good as the top three in swimming and running,but much slower in cycling.That's why I'm working very hard at it." She is trying to talk her longsuffering parents,who will carry the PS1,300 cost of her trip to New Zealand for this year's world championships,into buying a PS2,000 bike,so she can try 25km and 100km races... Options: A She worries less than they do. B She expresses herself differently. C Her family background is not like theirs. D Her aims are different from theirs. Answer: B She expresses herself differently. Question:
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Answer:
How does Melanie differ from other athletes,according to the writer?