D(正确). 答案的主旨是:作者提到Pliny的原因是为了指出在大范围的对于amber的误解中,依然存在一个例外。原文中先说了Pliny对amber的正确认识,又说了大众普遍的持久的错误认知,符合D答案的表述。—— 其实这个答案并不非常准确,因为最句话的作用最合适的表达其实是:To emphasis the popularity and the pervasiveness of the misunderstanding of amber. 但是因为没有这样的答案,所以D是最佳选项。
For why D is wrong, it may be explained as: there is a certain number of fatalities per highway mile driven say 0.01. It doesn't matter how many miles were driven exactly. This only implies that if 100 miles were driven, there was one fatality. If 1000 miles were driven, there were 10 fatalities. If 10000 miles were driven, there were 100 fatalities. The fact that people have started driving more does not increase/reduce this number. (credit to gmatclub forum)
A(错). Pliny对于amber的理解是正确的,所以A答案认为Pliny的说法是误解的一个例子是错误的。