How can a network administrator help meet these criteria?

A company has an Aruba solution. The company wants to host a guest login portal with this solution, and the login portal must give guests the option to create their own login accounts.

How can a network administrator help meet these criteria?
A . Choose the Internal captive portal with email registration option for the guest WLA
C . Choose ClearPass or the other external captive portal option for the guest WLA
E . Make sure to create a guest provisioning account for the guest WLA
G . Disable authentication in the captive portal profile for the guest WLA

Answer: B