Which statement about Junos firewall filters is correct?
A. Firewall filters can be applied as a security policy action
B. Firewall filters do not operate on stateful flows and they serve no purpose in a next-generation firewall
C. Firewall filters can be applied as the packet enters the security device, and they are stateless.
D. Firewall filters are applied to TCP packets only. and they do not block UDP pockets