A high school in New York $($school A$)$ is using videoconferencing technology to establish student interactions with another high school $($school B$)$ in Russia. The videoconferencing is conducted between two end devices through the Internet. The network administrator of school A configures the end device with the IP address $209\mathrm{.}165\mathrm{.}201\mathrm{.}10.$ The administrator sends a request for the IP address for the end device in school B and the response is $192\mathrm{.}168\mathrm{.}25\mathrm{.}10.$ Neither school is using a VPN$.$ The administrator knows immediately that this IP will not work. Why?a$)$tThis is a loopback address.b$)$tThis is a link$-$local address.c$)$tThis is a private IP address.d$)$tThere is an IP address conflict.