Prior to 1980, many American-made cars did not have anti-lock brakes. These brakes help to prevent cars from skidding and spinning out on ice, and would therefore seem to increase driver control. However, after 1980, when all American-made cars were manufactured with anti-lock brakes, the number of U.S. drivers who experience car accidents due to skidding or spinning out on ice increased by 4 percent annually.
Which of the following, if true, most helps to explain the increase in the number of drivers who skidded and spun out on ice?
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ADuring the winter, the US has an unusually large number of icy roadways
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BCars can be just as likely to skid and spin out just after the beginning of a snowstorm as when roads are covered by patches of ice.
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CPrior to the introduction of anti-lock brakes in American cars, more drivers skidded and spun out in the US than in any other country
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DAfter 1980, many US drivers who had specifically avoided driving in icy conditions no longer did so
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EMany drivers skid and spin out on ice because they fail to steer appropriately rather than because their cars lack anti-lock brakes
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正确答案: D