In a Busy DMV Office, a Customer Will Have to Wait

Multiple Choice

In a busy DMV office, a customer will have to wait in one line to complete the application (the first service stop) , queue again to take the test, and finally go to a third counter to pay the applicable fee. In this case, it is a ________ system.

A) multiphase
B) M/M/1
C) M/D/1
D) M/M/S
E) M/M/1 with finite population.