----Have you heard of the school bus accident recently?

-----Yes.          the victims was over 20 and most of them died.

A．A number

B．A number of

C．The number of

D．The number

供电企业应当依法从事供电业务，并接受（）及其派出机构（以下简称电力监管机构）的监管。供电企业依法经营，其合法权益受法律保护。

A.国家电网公司

B.发改委；

C.地方政府；

D.电监会。