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

B.
Create an external network within vCloud Director.

C.
Create a network pool in vCloud Director.

D.
Create a vSphere port group manually.