A packet is evaluated against three user-defined terms within a firewall filter and no match is found. What correctly describes the action the firewall filter will take for this packet?（）

• A、The filter will permit the packet and take no additional action.
• B、The filter will reject the packet and send an ICMP message back to the sender.
• C、The filter will discard the packet and take no additional action.
• D、The filter will permit the packet and write a log entry to the firewall log.