William is a Security Administrator who has added address translation for his internal Web server to be accessible by external clients. Due to poor network design by his predecessor, William sets up manual NAT rules for this server, while his FTP server and SMTP server are both using automatic NAT rules. All traffic from his FTP and SMTP servers are passing through the Security Gateway without a problem, but traffic from the Web server is dropped because of anti-spoofing settings. What is causing this?

A.
"Allow bi-directional NAT" is not checked in Global Properties.

B.
"Translate destination on client side" is not checked in Global Properties under "Manual NAT Rules".

C.
"Translate destination on client side" is not checked in Global Properties > Automatic NAT Rules".

D.
Routing is not configured correctly.

E.
Manual NAT rules are not configured correctly.