What must happen first?

A vSphere Administrator recently upgraded to vSphere .6.5 and wants to assign more than 4 TB of RAM to the
virtual machine.
What must happen first?

A.
Make sure that the user account has administrative privileges at a global level.

B.
Upgrade the Virtual Machine compatibility to version 13.

C.
Obtain an ESXi server with an Intel Skylake CPU.

D.
Make sure that there are no snapshots present on the virtual machine.