Answer:
Option B i.e., Update the UEFI firmware.
Explanation:
The user had many periods of using the same machine. He wants to update the processor to increase the existing service period. Later, he tests the paperwork onto the motherboard and buys the best motherboard-supported processor.
While the user starts the machine, though, that makes a noise constantly, nothing is shown on its monitor and it wouldn't start. So, the first step is he will update firmware from UEFI.
Thus, the other options are not correct according to the scenario.
