Who is being rude here?

来源: 于 2021-11-15 17:34:30 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

A offers her opinions to B. 
B comments A's opinions in an honest and polite way.
C criticizes B “偏狭而且无礼” blah blah ……

Question: Who is being rude here?
Correct answer: C