Which statement about IDS/IPS design is correct？（）

• A、 An IPS should be deployed if the security policy does not support the denial of traffic.
• B、 An IPS analyzes a copy of the monitored traffic and not the actual forwarded packet.
• C、 An IDS analyzes a copy of the monitored traffic and not the actual forwarded packet.
• D、 Bandwidth considerations must be taken into account since IDS is deployed inline to traffic flow.