Because it was the bank’s mistake, there was no delay ______ my account.

A．being reopening

B．reopening

C．to reopening

D．to reopen

积极推广适用于民间的公安科技，提高群众自防、自救能力；在群众中普及防卫知识，提高群众打击违法犯罪活动的本领。( )