Scenario: Users in an organization use WorxMail on their mobile devices for email access.
A Citrix Engineer needs to configure NetScaler and App Controller to allow these users to
stay connected to email for long durations without prompting re-authentication. What should
the engineer configure to meet the requirements of the scenario?

A.
Micro VPN

B.
Secure Ticket Authority

C.
Single Sign-on

D.
Client certificate