事先有预定目的，不需要意志努力而产生的注意是（）。

A.无意注意

B.有意注意

C.有意前注意

D.有意后注意

E.以上都不是

Although your son made some mistakes, he worked hard at his lessons. You shouldn't be hard ______ him. [ ]

A. in

B. at

C. on

D. for