请教GWD的一道题

whitezt

GWD-10-Q37:GWD-11-26

On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.



A.On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow

B.On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth

C.On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles

D.Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate

     E.  Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

正确答案是E，请问C错在哪里？两个选项之间的区别在于：1）是否倒装；2）on Earth的位置。个人感觉选项E的on Earth位置更不恰当啊。。。请各位高手解惑。多谢！

flywer

E的语序应该是：The rate at which trees grow is among the surest indications on Earth of sunspot cycles
为了表强调将among后面的部分提前了

C将on earth放在句首，这个状语就是修饰整个句子了，导致逻辑意思不太合理   这个可以参考下manhattan的解释，我觉得比用中文说要来的清晰些:
some things wrong with c:
* the placement of 'on earth' is just as problematic as in choice a (again, the sentence seems to be saying that residents of other planets disagree with us).
* 'as seen in the rings...' is a modifier that must be placed next to the thing that it modifies, which is 'the rate at which trees grow'. the way choice c is currently written, it says that indications of sunspot cycles can be seen directly in the rings - and it also implies that sunspot cycles (instead of trees) have rings!

whitezt

明白了！谢谢flymer！
敢问Manhattan上关于这道题目的解释在哪里？第4版我还没看呢，汗一个。。。