A post office has a single line for customers waiting for the next available postal clerk. There are two postal clerks who work at the same rate. The arrival rate of customers follows a Poisson distribution, while the service time follows a normal distribution. What type of queuing model applies here?

Select one:

a. M/M/1

b. M/M/2

c. M/G/2

d. M/D/1

e. M/D/2

How is this solved?