Refer to the Exhibit.

An administrator needs to configure a vSphere environment to support a vCloud network architecture providing for automatic provisioning of network pools.

Which step must be taken in order to successfully configure Port Group Isolation?

Exhibit:

A.
vShield Edge component must be added between the External Network and the virtual switch.

B.
VLAN/PVLAN configuration information must be added to the configuration.

C.
A vShield Edge component must be added between the Unprotected Network and the virtual switch.

D.
The Virtual Standard Switch must be replaced with a vSphere Distributed Switch.