Where extended terms of payment are agreed interest shall be charged from the date of the bill of lading upon the diminishing balance outstanding from time to time.

Where extended terms of payment are agreed interest shall be charged from the date of the bill of lading upon the diminishing balance outstanding from time to time.

A.若约定采用延期付款方式，利息应以提单上的日期开始计算，据每次递减的未付余额计付。

B.支付的期限给予的利息，作为装货账本的费用，时常用来减少未清的差额。

C.如果同意延长付款期限，则应根据不时减少的未付余额从提单日期起收取利息。

D.如果约定采用延期付款方式，利息应从提单日期起收取利息，据每次递减的未付余额计付。

正确答案是A