During the examination we are supposed to stay in our seats, keep our eyes on our work, _______to anyone.

A. instead of speaking　　　　 B. rather than speak

C. and not speak　　　　　　　　　　 　　　　　　　　　　 D. but would not speak

A. instead of speaking　　　　 B. rather than speak

C. and not speak　　　　　　　　　　 　　　　　　　　　　 D. but would not speak