At D'Amico's Pizza Parlor, Servers Are Evaluated on Their Knowledge

At D'Amico's Pizza Parlor, servers are evaluated on their knowledge of the menu, their accuracy of order taking, and their ability to work the cash register. But they should also be measured on how satisfied their customers are with the service. Because customer satisfaction is missing from the performance measure, one might consider it an example of:

A) criterion contamination.
B) criterion deficiency.
C) criterion relevance.
D) criterion practicality.