You should be more confident in situation is challenging you.A. whereverB. wheneverC. how

问题补充：

You should be more confident in situation is challenging you.

A. wherever

B. whenever

C. however

D. whatever

答案：

A. wherever

B. whenever

C. however

(答案→)D. whatever

解析：句意：无论在什么挑战你的情况中你都应该有自信。Whatever 引导了一个宾语从句，修饰situation,whatever situation 在从句中做主语。A.无论在哪里；B.无论什么时候；C.无论怎样，然而。