— Mum, I've been doing my homework for two hours.    ___  I play computer games for an hour?

— No, I'm afraid not. You'd better go out for a walk. It does good to your eyes. [ ]

A. Can't

B. Wouldn't

C. May not

D. Won't

具有美丽的花朵或花序，其花形、花色或芳香有观赏价值的乔木称观花木。