Which setting satisfies this requirement?

An administrator is enabling Enhanced vMotion Compatibility in a DRS cluster. The administrator wants the greatest degree of flexibility when adding new hosts in the cluster.

Which setting satisfies this requirement?

A.
Any baseline compatible with the existing ESXi hosts in the cluster

B.
The highest baseline that is compatible with the ESXi hosts in the cluster

C.
The lowest baseline that is compatible with all ESXi hosts in the cluster

D.
The highest baseline that is compatible with vSphere 4.x and 5.x

Explanation:
Reference: (REVIEWED)

Page 129 from vsphere-esxi-vcenter-server-50-host-management-guide.pdf

Change the EVC Mode for a Cluster
If all the hosts in a cluster are compatible with the new mode, you can change the EVC mode of an existing EVC cluster. You can raise the EVC mode to expose more CPU features, or lower the EVC mode to hide CPU features and increase compatibility.
To raise the EVC mode from a CPU baseline with fewer features to one with more features, you do not need to turn off any running virtual machines in the cluster. Virtual machines that are running do not have access to the new features available in the new EVC mode until they are powered off and powered back on. A full power cycling is required. Rebooting the guest operating system or suspending and resuming the virtual machine is not sufficient.
To lower the EVC mode from a CPU baseline with more features to one with fewer features, you must first power off any virtual machines in the cluster that are running at a higher EVC mode than the one you intend to enable, and power them back on after the new mode has been enabled.


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