815。The record of the past is always incomplete, and the historian who writes about it inevitably reflects the preoccupations of their own time.

(A) the historian who writes about it inevitably reflects

(B) the historian writing about it will inevitably reflect

(C) a historian writing about it inevitably reflects

(D) writing about it, it is inevitable for historians to reflect（E）

(E) historians in writing about it inevitably reflect

我选的是B。不知道E中的IN是什么成分呢？B又错在那里呢？

B：里面historian应该用复数，因为后面出现了their；will多余，改变句子时态，其实用一般现在时就可以了

至于为什么E选项要用in，帮你顶？可能是防止产生歧义？？？