大全Section 1-17

17.   During the nineteenth century Emily Eden and Fanny Parks journeyed throughout India, sketching and keeping journals forming the basis of news reports about the princely states where they had visited.

(A) forming the basis of news reports about the princely states where they had

(B) that were forming the basis of news reports about the princely states

(C) to form the basis of news reports about the princely states which they have

(D) which had formed the basis of news reports about the princely states where they had（E）

(E) that formed the basis of news reports about the princely states they

答案选E,我觉得A也对啊~

同位语比分词修饰要好吗？