Correct Answer: DThe ARP cache stores the MAC addresses of devices that are directly connected to the local network segment. In this scenario, when the host tries to ping an external website like www.huawei.com, it requires the MAC address of the router interface (gateway) to forward the packets outside the local network. Since ARP is used to map IP addresses to MAC addresses, the host will have the MAC address of the router interface (in this case, interface G0/0/0) in its ARP cache rather than the MAC address of the destination website or the switch.