XDF 补充, section 6, No. 16

16. Scientists have observed large concentrations of heavy-metal deposits in the upper twenty centimeters of Baltic Sea sediments, which are consistent with the growth of industrial activity there.

(A) Baltic Sea sediments, which are consistent with the growth of industrial activity there

(B) Baltic Sea sediments, where the growth of industrial activity is consistent with these findings

(C) Baltic Sea sediments, findings consistent with its growth of industrial activity

(D) sediments from the Baltic Sea, findings consistent with the growth of industrial activity in the area

(E) sediments from the Baltic Sea, consistent with the growth of industrial activity there

why d) is better than a)?

A里面which没有明确的指代对象。

OG里说的很清楚了:

In A and B the words which and where appear to refer to sediments, and in E it is not clear what consistent describes. In A, C, and E, there is no logical place to which there or its could refer.