What does a router do?

A.
stores data on the network and connects the local-area network (LAN) to the wide-area network (WAN)

B.
routes traffic down alternative paths and connects the local-area network (LAN) to the wide-area network (WAN)

C.
broadcasts data to all devices that are connected to it across the local-area network (LAN) and wide-area network (WAN)

D.
reads Media Access Control (MAC) addresses to forward messages to the correct location and connects the local-area network (LAN) to the wide-area network (WAN)