Tom the Technician Has Just Added RAM to a Computer

Tom the technician has just added RAM to a computer. When the system boots, it shows only the original amount of RAM. In BIOS, only the original amount displays, works, or can be input. What are two possible problems?

A) The new module is bad.
B) The new module is not a supported type or capacity.
C) The newer, faster module must be placed in the original memory module slot, and the older module placed in the expansion slot.
D) The Windows Memory Manager must be updated by inputting the new total capacity.
E) The CMOS needs to be flashed.