________ me what you wanted to know, I should not have wasted my time talking so much with you.

A．Had you told

B．You have told

C．You had told

D．Have you told

借款人贷款本金为80万元，贷款期限为l5年，采用按月等额本金还款法，月利率为3．465‰，借款人第一期的还款额为（）元。

A.7989.62

B.7512.63

C.7216.44

D.7631.67