Which one of the following statements describes consideration payable to a customer?

A$.$ Market Corp. accepts a truck as payment for a large order from a major customer.

B$.$ Market Corp. sells a bath towel set that contains three bath towels for less than the price of the three individual towels added up$.$

C$.$ Market Corp. issues a $$1,000$ voucher to a customer, which can be used to purchase goods in the future.

D$.$ Market Corp. signs an agreement with a customer to accept $$12,000$ in $18$ months for payment of a $$10,000$ invoice that is due now.