11. Based on accounts of various ancient writers, scholars have painted a sketchy picture of the activities of an all-female cult that, perhaps as early as the sixth century B.C., worshipped a goddess known in Latin as Bona Dea, “the good goddess.”

(A) Based on accounts of various ancient writers

(B) Basing it on various ancient writers’ accounts

(C) With accounts of various ancient writers used for a basis

(D) By the accounts of various ancient writers they used（E）

(E) Using accounts of various ancient writers

AGREE

我想问：B是不是it指代不清？