What is the meaning of these terms?

In the vSphere Client the Virtual Machine Resource Allocation tab shows Host Memory
and Guest Memory.
What is the meaning of these terms? (Choose two)

A.
Host memory is the actual memory usage of the Virtual Machine.

B.
Guest Memory is the actual memory usage of the Virtual Machine

C.
Host memory is the amount of physical memory that has been allocated to a Virtual
Machine

D.
Guest Memory is amount of physical memory that has been allocated to a Virtual
Machine

Explanation:
vSphere Help

Host Memory
This section displays information about host memory usage. [A above]
Table 36. Host Memory Usage

Host memory therefore refers to the current usage of memory rather than the current
allocation,
Guest Memory
This section displays information about guest memory usage. [B above].
Table 37. Guest Memory Usage