Identify the two ways used to measure the service level

Q. Identify the two ways used to measure the service level.

A.            Unit Service Level (USL), Demand Service Level (DSL)

B.            Order Service Level (OSL), Unit Service Level (USL)

C.            Order Service Level (OSL), Demand Service Level (DSL)

D.            Production Service Level (PSL), Unit Service Level (USL)

Answer: Order Service Level (OSL), Unit Service Level (USL)