A technician just completed a Windows 10 installation on a PC that has a total of 16GB of RAM. The technician notices the Windows OS has only 4GB of RAM available for use. Which of the following explains why the OS can only access 4GB of RAM?


A. The UEFI settings need to be changed.
B. The RAM has compatibility issues with Windows 10.
C. Some of the RAM is defective.
D. The newly installed OS is x86.