What is the use of a VC class in IOS configuration?

A.
It defines a template for virtual circuits which can be applied to a (sub)interface such that all PVCs on that (sub)interface which will inherit the configuration from that template.

B.
It defines various priorities for the PVCs to enable priority queuing of cells transmitted on a (sub)interface.

C.
It is another name for Virtual Paths.

D.
It is used to classify incoming cells on a physical interface as CBR/ABR/ and UBR traffic.

E.
It defines a template for switching ATM pvcs from one interface to another.