You have a server that runs windows server 2008. You need to prevent the server from establishing communication sessions to other computers by using TCP port 25. What should you do?（）

A.From windows firewall, add an exception.

B.From windows firewall enable the block all incoming connections option.

C.From the windows firewall with advanced security snap-in, create an inbound rule.

D.From the windows firewall with advanced security snap-in, create an outbound rule.