asks you to get rid of the bad habits is quite right.A. WhoB. Those whoC. Anyone whomD.

问题补充：

asks you to get rid of the bad habits is quite right.

A. Who

B. Those who

C. Anyone whom

D. Whoever

答案：

A. Who

B. Those who

C. Anyone whom

(答案→)D. Whoever

解析：所选答案是主语从句的引导词且在从句中作主语，同时又作了主句的主语，用whoever，因为whoever相当于anyone who(who作主语)，those who中的定语从句要用复数的谓语动词。