Refer to the Exhibit. An administrator is attempting to enable Enhanced vMotion Compatibility (EVC), but receives the error shown in the Exhibit. Which condition would explain the error?

EVC is included in standard vSphere licensing and does not require a separate add-on license; a licensing problem would generate a different error about features being unavailable.

The error is caused by a CPU feature conflict at the hardware level, not a permissions issue; insufficient privileges would produce an authorization or access-denied message instead.

Enhanced vMotion Compatibility masks CPU features to a common baseline across cluster hosts, but certain fundamental CPU capabilities - including the Intel No-Execute (NX/XD) protection bit - must be active at the hardware level before EVC can apply any mask. If NX is disabled in the BIOS, vCenter cannot satisfy the minimum CPU feature requirements and returns the error shown, blocking EVC activation entirely.

Enabling Intel Virtualization Technology (VT-x) is generally required for VM execution rather than a cause of EVC failure; disabling VT-x prevents VMs from running at all, which is an entirely different problem.