If you gave your American boss an expensive gift and he or she said: "I'm sorry. I really can't accept this gift." What would you do?

A、I will insist many times on giving the gift until he or she accepts it.;

B、I can try to find out his or her reasons for not accepting the gift.;

C、I can say: If you don't accept this gift, I'll be very angry.;

D、I can tell him or her that gift is a good bargain which is not as expensive as he or she ecpects.