When using Captive Portal to send unidentified users to a Web portal for authentication, which of the following is NOT a recommended use for this method?

When using Captive Portal to send unidentified users to a Web portal for authentication, which of the following is NOT a recommended use for this method?
A . Identity-based enforcement for non-AD users (non-Windows and guest users)
B . For deployment of Identity Agents
C . Basic identity enforcement in the internal network
D . Leveraging identity in Internet application control

Answer: C