These articles are written in simple language makes it easy to read.A. thatB. thisC. whi

问题补充：

These articles are written in simple language, makes it easy to read.

A. that

B. this

C. which

D. it

答案：

A. that

B. this

(答案→)C. which

D. it

解析：本题考查定语从句。此处which引导非限制性定语从句，代替前面整个句子。句意：这些文章用简单地语言描写，使得它很容易阅读。