How do you configure the PIX Firewall to protect against SYN floods?

How do you configure the PIX Firewall to protect against SYN floods?

A.
Set themax_conns option in the nat command to less than the server can handle.

B.
Use theemb_conns argument to limit the number of fully opened connections.

C.
Set theemb_limit option in the name command to less than the server can handle.

D.
Set theemb_limit option in the static command to less than the server can handle.