Host 1 is trying to communicate with Host 2. The e0 interface on Router C is down. Which of the following are true?（）A、Router C will use ICMP to inform Host 1 that Host 2 cannot be reached.B、Router C will use ICMP to inform Router B that Host 2 cannot be reached.C、Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached.D、Router C will send a Destination Unreachable message type.E、Router C will send a Router Selection message type.F、Router C will send a Source Quench message type.
Host 1 is trying to communicate with Host 2. The e0 interface on Router C is down. Which of the following are true?（）
- A、Router C will use ICMP to inform Host 1 that Host 2 cannot be reached.
- B、Router C will use ICMP to inform Router B that Host 2 cannot be reached.
- C、Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached.
- D、Router C will send a Destination Unreachable message type.
- E、Router C will send a Router Selection message type.
- F、Router C will send a Source Quench message type.
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