To Ensure That a Contractor Ships Parts and Supplies of High

To ensure that a contractor ships parts and supplies of high quality to the primary firm,the primary firm may ______.

A) position quality assessment personnel at the suppliers' work sites to monitor the quality of supplies that will be distributed to the primary firm
B) contract for supplies only with friends and associates of the primary firm's management
C) send the same purchase orders to multiple suppliers
D) check each unit and each item received from the supplier