It is you deal with difficulties that shows you are really like．
A. what; what
B. how; that
C. which; how
D. how; what
网友回答
A. what; what
B. how; that
C. which; how
(答案→)D. how; what
解析：how you deal with difficulties是被强调部分，作方式状语；what you are really like是宾语从句，what 作介词like的宾语。