Use your head! Nothing taught by others can have the same effect on you as ________learned by yourself．

A．those

B．what

C．that

D．the one

把下面的六个图形分为两类，使每一类都有各自的共同特征或规律（）

A．①②③，④⑤⑥

B．①②④，③⑤⑥

C．①④⑤，②③⑥

D．①③⑤，②④⑥