When configuring IOS firewall （CBAC） operations on Cisco routers， the "inspection rule" could be applied at which two locations？ （）

• A、 at the untrusted interfacein the inbound direction
• B、 atthe untrusted interface in theoutbounddirection
• C、 at thetrusted interface inthe inbound direction
• D、 at the trusted interface in the outbound direction
• E、 at the trusted and untrusted interfaces in the inbound direction
• F、 at the trusted and untrusted interfaces in the outbounddirection