What are two advantages of a switched fabric over arbitrated loop topology? (choose two)

What are two advantages of a switched fabric over arbitrated loop topology? (choose two)

A.
A single Fabric can scale to 2048 switches.

B.
Failure of a single device in a switched topology affects only that device.

C.
Each device arbitrated to gain access to the switch thus avoids contention.

D.
Number of devices that can be attached increases as the size of the switching structure expands.