You are the network consultant from Cisco.com. Please point out two statements correctly describe an IPS device（）

• A、It resembles a Layer 2 bridge.
• B、Traffic flow through the IPS resembles traffic flow through a Layer 3 router.
• C、Inline interfaces which have no IP addresses cannot be detected.
• D、Malicious packets that have been detected are allowed to pass through, but all subsequent traffic is blocked.