What are two requirements to enable EVC in vSphere DRS …

What are two requirements to enable EVC in vSphere DRS cluster? (Choose two.)

A.
CPUs must be from the same vendor.

B.
EVC must use the lowest possible baseline supported by the hardware.

C.
CPUs must be in the same family and of the same speed.

D.
No VMs may be running in the cluster.

Explanation:
https://pubs.vmware.com/vsphere-60/index.jsp#com.vmware.vsphere.vcenterhost.doc/GUIDFEC87C0B-7276-4152-8EAA-915305E64FED.html#GUID-FEC87C0B-7276-4152-8EAA-915305E64FED