Answer:
b. cost of capacity
Step-by-step explanation:
A waiting line system can be defined as the number of customers (people) or items (products) that are waiting to receive a service or cleared for the service taken i.e to successfully complete a transaction.
Hence, the parameters of a waiting line system include all of the following;
a. Service time: this is simply the total time it takes to complete a transaction process successfully.
b. Queue discipline: it is uses rules such as first-in first-out.
c. Arrival rates: the time each customer arrives for the service.