A Wide Area Network (WAN) may be privately operated for a specific user community, may support
multiple communication protocols, or may provide network connectivity and services via:

A.
interconnected network segments (extranets, intranets, and Virtual Private Networks)

B.
interconnected network segments (extranets, internets, and Virtual Private Networks)

C.
interconnected netBIOS segments (extranets, intranets, and Virtual Private Networks)

D.
interconnected NetBIOS segments (extranets, interest, and Virtual Private Networks)