When writing an exploratory essay, the writer needs to trace various （）, and summarize previous （） concisely and informatively. In this case, the writer needs to show （） and （） for others.

A.studies, avenues, politeness, consideration

B.studies, avenues, consideration, questions

C.avenues, studies, politeness, consideration

D.avenues, studies, consideration, questions

正确答案：avenues, studies, politeness, consideration