Acustomer asks you over the phone how much it will cost to upgrade memory on her desktop system to 16 gb. she is a capable windows user and able to access bios/uefi setup using the user power-on password you set up for her. which actions can you ask the customer to perform as you direct her over the phone to get the information you need and develop an estimate of the upgrade's cost?
a. use bios/uefi to view how much memory is installed and how much memory the system can hold.
b. enter info32.exe to determine how much memory is currently installed.
c. use bios/uefi to show which memory slots are used and how much memory is installed in each slot.
d. view the system information window to determine how much memory is currently installed.

C: Use BIOS/UEFI to show which memory slots are used and how much memory is installed in each slot.

Explanation:

Apart from disassembling the computer and physically examining the motherboard or installing third party software to show the memory slots used and the amount of RAM in each, you can use the information that is displayed on your system’s UEFI firmware or BIOS to check. However, the latter is best to determine. BIOS/UEFI setup is used especially when the OS is not working. Depending on the type of computer system this customer has, he or she will be required to shut the PC off and boot it up. He or She will then be required to use a particular keyboard shortcut to enter into the BIOS/UEFI setup and look for information about RAM.

Option A is wrong because the BIOS/UEFI setup will not show you the amount of RAM the PC can hold

Running info32.exe on most windows computer will give you an error dialog box

nope i prefer two because it is simpler, i don't like all the powers you get

explanation:

but that's my opinion