The Exterior Gateway Protocol (EGP) is a now obsolete routing protocol for the Internet originally
specified in 1982 by Eric C. According to the following descriptions, select the most accurate one
about the use of an EGP.

A.
Advertising a /24 to an upstream provider.

B.
Routing between VLANs on an Ethernet network.

C.
Periodic updates to neighbors on the LAN.

D.
Unequal cost load balancing over a switched network.