【题目】As many as five courses are provided, and you are free to choose ______ suits you best.
A.whatever
B.whichever
C.whenever
D.wherever

【答案】B
【解析】句意：提供的课程多达五门，你免费选择最适合你的。所填词引导的从句作动词choose的宾语，引导词在从句中作主语，意为“无论哪件”，故选B。