makes him different is he can offer more information.A. What thatB. which thatC. That

问题补充：

makes him different is he can offer more information.

A. What , that

B. which, that

C. That, that

D. That, what

答案：

(答案→)A. What , that

B. which, that

C. That, that

D. That, what

解析：考查名词性从句。What引导主语从句，在从句中作主语，that引导表语从句，从句不缺成分，故选A。