Which of the following describes the roles of devices in a WAN? (Choose three.)

A.
A CSU/DSU terminates a digital local loop.

B.
A modem terminates a digital local loop.

C.
A CSU/DSU terminates an analog local loop.

D.
A modem terminates an analog local loop.

E.
A router is commonly considered a DTE device.

F.
A router is commonly considered a DCE device.