Which Captive Portal mode must be configured to support MFA authentication?

Which Captive Portal mode must be configured to support MFA authentication?Reference: https://www.paloaltonetworks.com/documentation/80/pan-os/pan-os/authentication/configure-multi-factor-authentication

Question:

Which Captive Portal mode must be configured to support MFA authentication?

Options:

NTLM

Redirect

Single Sign-On

Transparent

Correct Answer

The Correct Answer for this Question is

Redirect