Which two statements are true when the extended system ID feature is enabled? (Choose two.)

A.
The BID is made up of the bridge priority value (2 bytes) and bridge MAC address (6 bytes).

B.
The BID is made up of the bridge priority (4 bits), the system ID (12 bits), and a bridge MAC address (48 bits).

C.
The BID is made up of the system ID (6 bytes) and bridge priority value (2 bytes).

D.
The system ID value is the VLAN ID (VID).

E.
The system ID value is a unique MAC address allocated from a pool of MAC addresses assigned to the switch or module.

F.
The system ID value is a hex number used to measure the preference of a bridge in the spanning-tree algorithm.