Which statement is true about replacing system boards?

A.
You must back up the encryption keys, passwords, and other user credentials before replacing
system boards that include the Trusted Platform Module (TPM).

B.
Replacing the system board typically includes moving items, such as CPUs, memory modules, heat
sinks, fans, and RTC batteries, from the old board to the new board.

C.
You must update the BIOS with the correct licensing information when replacing system boards
that are tied to individual or group licenses.

D.
The system board replacement part includes the processor and the heat sink and must be
replaced as a complete unit.