Which of these statements correctly describes traffic policing?

Which of these statements correctly describes traffic policing?

A.
It allows for the provision of low latency on congested interfaces.

B.
It is mandatory when enabling NBAR and CBWFQ.

C.
It allows for the metering and limitation of bandwidth utilization.

D.
It is also referred to as ‘buffer tuning,’ and is an optimal way to manage router I/O memory.

E.
It should be configured on every router to avoid memory corruption.