You should be more confident in situation is challenging you.
A. wherever
B. whenever
C. however
D. whatever
网友回答
A. wherever
B. whenever
C. however
(答案→)D. whatever
解析：句意：你应该更自信在任何给你挑战的情形中。 wherever无论哪里；whenever无论什么； however无论怎样；whatever无论什么。故选D。
考点: 考查名词性从句的关系词的用法。