After installing VMware vCenter Server Appliance, an administrator attempts to configure linked mode.

What will cause the attempt fail?

A.
An active directory server cannot be located.

B.
The vCenter Server appliance cannot be configured in linked mode until installed via the vCenter server appliance administrator interface.

C.
A vCenter Server instance must be installed as standalone before the vCenter Server appliance can be joined to it.

D.
Linked mode is not available when using the vCenter Server appliance.

Explanation:

http://pubs.vmware.com/vsphere-50/index.jsp?topic=/com.vmware.vsphere.install.doc_50/GUID-25FCBA87-5D2F-4CB6-85D7-88899B4AC174.html