A vSphere administrator needs to add a CPU to a virtual machine, but upon editing the VM settings the option is grayed out. What would explain this behavior?

A vSphere administrator needs to add a CPU to a virtual machine, but upon editing the VM settings the option is grayed out.
What would explain this behavior? 







A. The virtual machine is running
B. The virtual machine has been configured with a CPU limit
C. CPU Hot-add has not been enabled on the virtual machine
D. The virtual machine is in a resource pool with no available CPU resources





Answer: A,C


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