A seller's property is listed for $399,900. A buyer makes an offer for $389,000. The seller counteroffers for $392,500. The buyers have not responded to the counteroffer. The sellers receive another offer for $395,000. They would like to accept this new offer. What is true?
a) The sellers can accept the new offer.
b) The counteroffer is binding until withdrawn.
c) The original offer is automatically rejected.
d) The sellers must wait for the buyers' response to the counteroffer.