1. For some reason the new consultant treats his clients like idiots, talking to them like they were mentally deficient and incapable of understanding more than the simplest ideas.
(A) like idiots, talking to them like they
(B) as if they were idiots, talking to them like they
(C) like idiots, talking to them as if they
(D) as idiots, talking to them like they（C）
(E) like idiots who [C]
请问talking..这部分在句中作什么成分? | 
