$86\mathrm{.}7\%$ complete

Question

What is the purpose of BIOS?

A$.$It is the firmware that drives the bootstrapping process.

B$.$It is the software that allocates memory to applications.

C$.$It is the hardware used to transfer data from the CPU to other components on the motherboard.

D$.$It is the instruction set of the CPU that decodes each instruction and decides whether to execute it or send it on$.$