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题目材料：
In a remote area of Cleland County, there are large, privately owned land parcels with privately constructed and maintained roads crossing them. Drivers use the private roads as shortcuts, so these roads are traveled as much as the area' s public roads. Only the public roads are subject to strict safety regulations about construction and upkeep; nevertheless, the two kinds of road have similar accident rates. Clearly, the regulations do nothing to improve safety conditions on these remote public roads.
Which of the following, if true, most seriously weakens the argument?
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A.The regulations require the area' s public roads to be inspected several times a year to determine whether they meet mandated standards.
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B.The area' s private roads do not meet the standards that regulations impose on the public roads.
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C.Accidents on the area' s public roads are more serious on the whole than accidents on the private roads.
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D.Almost all drivers on the area' s private roads are familiar with these roads.
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E.The regulations governing the public roads have generally been written with an eye to safety on roads with high traffic volume rather than on roads in remote areas.
D显示答案
