When the seller receives the buyer’s counter-offer， and he finds some terms and conditions unacceptable to him， he will state his own opinions in a letter， which is called as

When the seller receives the buyer’s counter-offer， and he finds some terms and conditions unacceptable to him， he will state his own opinions in a letter， which is called as
A、bid
B、offer
C、inquiry
D、counter-counter-offer
正确答案：B