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An indicator of inefficiency in a separate queue system is:A. having idle servers and waiting customers...

An indicator of inefficiency in a separate queue system is:
A. having idle servers and waiting customers at the same time
B. having waiting customers
C. having idle servers or waiting customers
D. having idle servers

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A. having idle servers and waiting customers at the same time

The basic idea of having a separate queue system is that the waiting time is reduced and the servers are utilized efficiently. However, if the servers are idle and the waiting customers are present in the queue, both at the same time, then the idea of having a separate queue fails and indicates therefore an inefficiency in the system.

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