When a wireless repeater is used to extend the range of an access point, it forms a ___________?

When a wireless repeater is used to extend the range of an access point, it forms a ___________?

A.
Frame Relay Coordination Function (FRCF)

B.
Wireless Distribution System (WDS)

C.
Packet Duplication Operation (PDO)

D.
Echo Delivery System (EDS)