Which of the following is the BEST method to reset the system BIOS on the motherboard to default settings if the reset jumpers are not available on PCB?

A.
Remove the CPU from the motherboard for 5 seconds.

B.
Disconnect the AC power cable from the back of the computer for 5 seconds.

C.
Disconnect 24-pin and 4-pin power cables from the motherboard for 5 seconds.

D.
Remove the CMOS battery for 5 seconds.