Which two actions have no effect on the amount of physical memory resources used for virtualization overhead?

Which two actions have no effect on the amount of physical memory resources used for virtualization overhead? (Choose two.)

A.
Installing a 64-bit versus 32-bit operating system.

B.
Increasing the amount of RAM in the virtual machine.

C.
Increasing the number of virtual CPUs in the virtual machine.

D.
Increasing the memory shares for the virtual machine.