【题目】__________ you may have, you should gather your courage to face the challenge.
A.However a serious problem
B.What a serious problem
C.However serious a problem
D.Whatever serious a problem

【答案】C
【解析】考查状语从句。句意：无论你的问题有多么的严重，你都需要勇敢地去面对挑战。此题考查的是让步状语从句并依照词序的考查可知答案为C。