Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Economics is the study of how societies with limited resources decide what to produce, how to produce and for whom to produce. What, how, and for whom to produce are problems all over the world because human needs are practically unlimited, but all societies have only limited quantities of resources that can be used to produce goods or services. A knowledge of basic economics is important for understanding both the problems and opportunities that will face the world economy in the 21st century. As a student of economics, one will have the chance to discover how commerce , government policies, and day-to-day decisions made by consumers affect his living standards. The study of economics can help him understand the influence of such events as the move to free markets in prefix = st1 /PolandandRussia, or of ups and downs in interest rate and the foreign exchange rate. Economics is influenced by developments in the many different areas of business, politics, science, nature, religion and history. And whether or not one is aware of it, economics is an important part of his life. From a practical point of view, one's study of economics will help improve his decision-making skills. He learns a logical way to compare different courses of action. As he studies the concept of opportunity cost, for instance, he will discover that every choice he makes has both a benefit and a cost. Suppose someone decides to get a part-time job so he can earn enough money to buy a car. He will have the benefit of owning the car, but he will pay a cost in terms of the leisure hours he gives up for working so as to pay for the car and keep it in good condition. After weighing his choice in cost-benefit terms, he may decide he does not need a car any more. Options: A Because he has to spend some time in the car. B Because he has to work extra hours to get the money. C Because he is busy working for his boss. D Because keeping a car in good condition takes much time. Answer: B Because he has to work extra hours to get the money. Question:
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The answer is:
Why does the person have to give up leisure hours in the example of buying a car?

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Many centuries ago, birthdays were considered a time when the bad spirits were able to harm you. It was believed that you should have your friends and family around you so that their good wishes and present-giving would keep the bad spirits away. People also believed that, by lighting candles, they were sending a signal or wishes to the gods. Later on, candles started to be used on birthday cakes. One story about the beginnings of the birthday cake is that it started with the Greeks, who made round cakes standing for the full moon for their moon goddess . They also placed candles on the cake to make it light, again like the moon. However, the Germans are said to have first used cakes and candles. They used a sweet cake and they put a large candle in the centre of the cake to mean "the light of life". The "Happy Birthday" song is more than a hundred years old. The music was written in 1893 by two sisters, Patty and Mildred Hill, who were schoolteachers in Louisville, Kentucky. The music was first used as a morning greeting to their students with the title, "Good Morning To All". In 1935, the words legally belonged to the Hill sisters, and the copyright has been bought and sold for millions of dollars ever since. The present copyright is owned by Warner Communications. They bought it in 1989 for more than $22 million. Options: A have a great dinner B get birthday presents C light birthday candles D keep the bad spirits away Answer: D keep the bad spirits away Question:
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The answer is:
People celebrated birthdays many centuries ago to _ .

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Sixteen, sweet sixteen! Sweet sixteen? What 's so sweet about this birthday? Perhaps because sixteen marks out coming of age, which is the interim period between childhood and adulthood. It is a very brief and unique stage in our lives. A time when we are becoming an adult, yet still haven't lost our childhood innocence. The best of both words. Actually Sweet Sixteen applies more often to girl's 16th birthday than to boys. At that age, a girl is on the verge of becoming a woman. Picture a flower bud about to bloom, opening its face to the world for the first time. There's a sense of beauty and sweetness to this transition. Our 16th birthday is the first day we can get our driver's license. It is the official step towards becoming an adult. From this day forward, we no longer need our parents to drive us around, take us everywhere. Instead, we just borrow their car. Maybe that's what makes sixteen so sweet to the boys as they eagerly celebrate this newfound autonomy . Now they can drive without adult supervision! Haa, haa! Options: A Get more presents B Borrow a car and drive C Get driver's license D Do both B and C Answer: D Do both B and C Question:
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The answer is:
Girls and boys can _ at the age of sixteen.