Refer to the Exhibit.

An administrator needs to modify the range of static IP addresses available to the network in
question. The administrator clicks on the Network Specification tab and is presented the options
shown in the exhibit, which cannot be selected.
What is a possible cause for this issue?

A.
The administrator does not have the vShield Manager role.

B.
The administrator does not have the organization administrator role.

C.
The vShield Edge appliance has been powered off and is inaccessible.

D.
The network in question is a direct connected external organization network.