How do you block some seldom-used FTP commands, such as CWD, and FIND from passing through the Gateway?

How do you block some seldom-used FTP commands, such as CWD, and FIND from passing through the Gateway?

A.
Add the restricted commands to the aftpd.conf file in the Security Management Server.

B.
Modify the desired profile in the FTP commands under Protection Details in the IPS tab.

C.
Configure the restricted FTP commands in the Security Servers screen of the Global Properties.

D.
Enable FTP Bounce checking / Application Intelligence / Protocol Protections from the IPS tab.