_______ he says or does won‘t make me change my mind at all.

_______ he says or does won‘t make me change my mind at all.
A、Whatever
B、However
C、Which
D、How
【正确答案】：A
【题目解析】：不管他说什么或做什么，都不会改变我的主意。该句子缺少宾语，能做宾语的只有whatever