A trucking company expects to purchase 525 truck tires over the next year for their fleet. The company places a blanket order for the tires to a local tire vendor. At the end of a year the company has only purchased 500 of the tires. What should be done to close the contract?

a. The trucking company should pay for the 25 tires and the tire vendor should deliver them.

b. The total price of the blanket order should be adjusted.

c. The contract should be closed because the year is up and no adjustments are necessary.

d. A new blanket order should be negotiated.