You are under a DDoS attack and you have added a deny all TCP rule to your NACL, but traffic is still coming. What did you do wrong?

A. You configured the rule number to be too low.
B. A NACL can't protect against a DDoS.
C. The DDoS isn't a TCP attack.
D. You need to add a deny rule outbound also since NACLs are stateful.