The data shows successful people have in common is they have perseverance.A. that that;

问题补充：

The data shows successful people have in common is they have perseverance.

A. that that; that

B. that what; that

C. what that; what

D. all that; because

答案：

A. that that; that

(答案→)B. that what; that

C. what that; what

D. all that; because

解析：考查名词性从句。shows 后是一个宾语从句，宾语从句中由what 引导的名词性从句作主语，is 后是由that 引导的表语从句。故选B 。