[多选题]8. Which of the following is not a valid packet-processing action taken by the ASA for flows traveling from the inside interface to the outside interface?当数据流从内部接口去往外部接口时， 下面哪个不是ASA处理数据包的有效行为?
A.NAT host check NAT主机检查
B.Route lookup 路由查询
C.IP options lookup (MPF) IP选项查询(MPF)
D.NAT (RPF)