Corcoran Computers entered into an agreement with the Belgian government in which the company received a number of counterpurchase credits to be used to purchase goods from Belgium. The company did not need any of these goods so it sold the credits to a third-party trading house at a discount. This trading house then sold the credits at a profit to another company that wished to purchase them. This transaction is an example of _____.
a. counterpurchase
b. barter
c. offset
d. switch trading