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Wide Area Network (WAN) is a computer network that covers a broad areA. Which statement is correct for wide-area network (WAN)?()
A.
Limited in a single building, a group of buildings, or even a single room
B.
Crosses metropolitan, regional, or national boundaries
C.
Encompasses an entire city or metropolitan area and connects multiple local-area networks (LANs)
D.
Connects client devices wireless protocol