____ was in 1979____ I graduated from university.

A．That; that

B．It; that

C．That; when

D．It; when

用基金购买的国家债券应视同货币资金，由财政部门商劳动保障部门委托（）代为保管，确保账实相符。

A.开户银行

B.经办机构

C.财政部门

D.社保部门