A.Routers facilitate communications within a broadcast domain.
B.Routers facilitate communications between broadcast domains.
C.Routers are used to break up broadcast domains into separate networks.
D.Routers are used to connect small broadcast domains and form larger more efficient broadcast domains

A.Broadcast domains consist of devices that connect to a common switch or hub.
B.Broadcast domains consist of a group of devices that can be reached by sending a frame addressed to the Layer 2 broadcast address.
C.Broadcast domains require a gateway device such as a router.
D.Broadcast domains consist of devices that reside on the same sub-network.