What is the difference between Standard and Specific Sign On methods?

A.
Standard Sign On allows the user to be automatically authorized for all services that the rule
allows. Specific Sign On requires that the user re-authenticate for each service and each host to
which he is trying to connect.

B.
Standard Sign On allows the user to be automatically authorized for all services that the rule
allows. Specific Sign On requires that the user re-authenticate for each service specifically defined
in the window Specific Action Properties.

C.
Standard Sign On requires the user to re-authenticate for each service and each host to which
he is trying to connect. Specific Sign On allows the user to sign on only to a specific IP address.

D.
Standard Sign On allows the user to be automatically authorized for all services that the rule
allows, but re-authenticate for each host to which he is trying to connect. Specific Sign On requires
that the user re-authenticate for each service.

Explanation: