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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: Seventeenth-century houses in colonial North American were simple structures that were primarily functional, carrying over traditional designs that went back to the Middle Ages. During the first half of the eighteen century, however, houses began to show a new elegance. As wealth increased, more and more colonist built fine houses. Since architecture was not yet a specialized profession in the colonies, the design of buildings was left either to amateur designers or to carpenters who were engaged in translating architectural handbooks imported from England. Inventories of libraries shows an astonishing number of these handbooks for builders, and the houses built during the eighteenth century show their influence. Nevertheless, most household architecture of the first-quarters of the eighteenth century displays a wide _ of taste and freedom of application of the rules laid down in these books. Increasing wealth and growing sophistication throughout the colonies resulted in houses of improved design, whether the material was wood, stone, or brick. New England still favored wood, though brick houses became common in Boston and other towns, where the danger of fire gave an impetus to the use of more durable material. A few houses in New England were built of stone, but only in Pennsylvania and areas nearby was stone widely used in buildings. An increased use of brick in houses and outbuildings is noticeable in Virginia and Maryland, but wood remained the most popular material even in houses built by wealthy landowners. In the Carolinas, even in closely packed Charleston, wooden houses were much common than brick houses. Eighteenth-century houses showed great interior improvements over the former ones. Windows were made larger and shutters removed. Large, clear panes replaced the small leaded glass of the seventeenth century. Doorways were larger and more decorative. Fireplaces became decorative features of rooms. Walls were made of plaster or wood. White paint began to take the place of blues, yellows, greens, and lead color1s, which had been popular for walls in the earlier years. After about 1730, advertisements for wallpaper styles in scenic patterns began to appear in colonial newspapers.
Answer: The improved design of eighteenth-century colonial houses.
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What's the passage mainly about?

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Article: Drinking green tea is known to be good for you. Some people suggest drinking 2-3 cups of it a day, and I would say at least one is highly advisable. As many people have already known, tea is filled with powerful antioxidants that will help stop free radicals . Free radicals are harmful to our systems in that they can lead to cell and DNA change, even cell death, and can lead to cancer. Green tea has been drunk throughout Thailand, China, India and Japan for centuries. It is known in these places that green tea can help improve digestion and mental clearness and lower one's blood sugar. It can also help control bleeding, so that injuries can be cured more quickly. Some studies even suggest that drinking green tea on a regular basis can help a person lose weight. Green tea can help a person feel fuller throughout the day with its pleasant smell and taste, and just taking the time to smell it can help ease one's hunger. In short, both studies of green tea and its history show that it is a great thing to drink for your health.
Answer: Antioxidants.
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Which of the following can cause DNA change and even cell death?

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Article: This week was busier than usual, and I was very tired today. All I wanted to do was to go home and enjoy a bowl of good hot soup. But when I saw my daughter's car, _ Since his parents separated, I had tried to have my six-year-old grandson spend a few hours with me at least once a week. I had always tried to make it a special time for him. We did many interesting things; Bryan loved all these activities, and so did I. But today I had to give up our evening. I said how tired I was feeling. "Bryan, I'm sorry. Tonight I don't feel like having fun or playing games. We'll have our night together some other time." I saw the sadness in Bryan's eyes. He said, "I like soup, Grandma." I knew he meant "Please don't send me away. Please let me stay." I saw the shadow in Bryan's eyes. Something else was changing. Maybe he thought I wouldn't want to have him come any more -- not tonight, not next week, not ever. Finally, I said OK. I was glad to see his eyes light up. After I put the soup on the stove and turned on the TV, I fell asleep. When I woke up, there was a coat over my legs, and the soup was gone. Bryan was on the floor, reading a coloring book and watching a television show at the same time. The poor boy must have been so bored ! When he found I was awake, he ran over and gave me a big hug. "I love you, Grandma," he said. "Haven't we had a nice time together?" His big smile and happy eyes told me that this time he meant exactly what he was saying. That was the keyword -- together. We had done nothing exciting or special. But we were together.
Answer: She was too tired to have fun or play games with him.
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Why didn't the author want to stay with her grandson that night at first?