Which two steps must be taken prior to configuring an external, direct connected Organization Network?

Which two steps must be taken prior to configuring an external, direct connected
Organization Network? (Choose two.)

A.
Create an external network within vCloud Director.

B.
Create a network pool in vCloud Director.

C.
Install a vShield Edge device on a vSphere port group.

D.
Create a vSphere port group manually.