The process for applying for a work permit at the Manchester department of labor is as follows. First, the administrator fills out an application (5 minutes) and takes a picture (1 minute). Then, a clerk enters the information and processes the permit (5 minutes). There are two administrators and three clerks. If the number of licenses per hour for the administrators is 16 and the number of licenses per hour for the clerks is 20.57, what can you conclude?

a. The administrators are the bottleneck resources.

b. There should be more clerks.

c. The clerks are a physical constraint.

d. The total process output is the average of the number of licenses per hour of the administrators and clerks.