The police chief is meeting with some citizens in his community, where he will discuss the police department's positive service delivery. the success of his organization is measured by

The success of his organization is measured by ITS EFFECTIVENESS.
The police department is usually rated by the public based on the physical results which can be seen and measured. For example, the police department will be rated effective if the number of crimes reduced drastically in a city in a particular period.

 

the answer to the question :

which best describes a central bank's primary goals? limiting inflation and reducing unemployment reducing unemployment and maintaining cash flow controlling stagflation and reducing unemployment managing credit and ensuring the money supply's liquidity

is:

reducing unemployment and maintaining cash flow

managing credit and ensuring the money supply's liquidity