In a core-edge SAN implementation, which statement is true about oversubscription?

A.
Oversubscription in a core-edge design is implemented by using N_Ports.

B.
A core-edge design has manageable oversubscription, but at the cost of used ISL ports.

C.
When using a core-edge design, there is only oversubscription when it is implemented in a heterogeneous environment.

D.
When using full-rate mode ports, there is no oversubscription in a core-edge implementation.