Bill offers to sell his Consumer Service Center business to Dina for $100,000. Dina replies, "The price is too high. I will offer to buy it for $90,000." Dina has:________

a. Accepted the offer.
b. Rejected the offer and made a counteroffer.
c. Rejected the offer without making a counteroffer.
d. Made a counteroffer without rejecting the offer.