What is CSMA/CD?

What is CSMA/CD?

A.
It is a deterministic mechanism that allows the orderly transmission of frames.

B.
It is a way that priority is determined for data transmission based on MAC address.

C.
It is a set of rules that determines path selection in an Ethernet network.

D.
It is a set of rules that allows the best-effort transmission of frames in a LAN environment.