If you want to make sure that all traffic from this server to the Internet appears to come from the public IP address 203.0.113.25, regardless of policies, which from of NAT would you use?

You have a privately addressed email server behind your Firebox.

If you want to make sure that all traffic from this server to the Internet appears to come from the public IP address 203.0.113.25, regardless of policies, which from of NAT would you use? (Select one.)
A . In the SMTP policy that handles traffic from the email server, select the option to apply dynamic NAT to all traffic in the policy and set the source IP address 203.0.113.25.
B . Create a global dynamic NAT rule for traffic from the email server and set the source IP address to 203.0.113.25.
C . Create a static NAT action for traffic to the email server, and set the source IP address to 203.0.113.25.

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Answer: B