Refer to the exhibit.

The network administrator is adding a new Cisco Nexus 1000V Switch to vCenter, but does not
see the new switch under the vCenter networking tab. The administrator issues the command that
is shown in the exhibit on VSM to troubleshoot this problem. When the administrator attempts to
fix the issue, the error that is shown in the exhibit is seen. Which option describes the most correct
cause of this error?

A.
There is a missing control VLAN in the VSM configuration.

B.
There is a missing packet VLAN in the VSM configuration.

C.
VSM has no network connection to vCenter.

D.
The VSM extension key is not installed on vCenter.

E.
The vCenter extension key is not installed on VSM.