听力原文： In the United States, many people once lived in large two-or three-story homes. Today, many people would like to live in such houses, but usually they cannot. They don't have enough money to buy them, even to make the first payment. So many people rent from month to month. But some Americans really want to live in a house of their own. So they build their own houses, or they buy a house that is situated in the area where houses are cheaper. It is better to live in the bad part of town, they say, than not to live in a house at all. They can also buy an old house and redesign it; then they decorate it with old style. furniture. Sometimes they can make the house more beautiful than a new one. Usually it is not difficult for people to find an old home to buy. Many old people decide they don't need a big home after their children leave. So they sell their house, and move into a comfortable apartment.
But when people move into a house, they sometimes have problems. Homeowners have to do their own maintenance. For example, if the roof leaks, one cannot ask the landlord to fix it. On the other hand, people can redesign their houses in any way they want without having to be afraid of being thrown out by the landlord.
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A．Because they prefer small and comfortable houses.
B．Because they want to build their own apartments.
C．Because such houses are always in the bad part of town.
D．Because they cannot afford them.