—Excuse me, Professor Smith, I was wondering if I could leave a quarter earlier today.

— _____ .

A．Nothing the matter.

B．Sure, go ahead

C．Oh, why not?

D．Of course, no problem.

下列选项中与漫画意思一致的观点是

A．思维和存在具有同一性

B．存在决定思维

C．思维和存在没有同一性

D．思维决定存在