X lets company employees access its computer resources and network from sites outside of its buildings. If illegal, X poses a risk since client devices, those used for X$,$ usually have less protection than standard or organization$-$based client devices. These devices might not be defined under the Y and Z policies since the company might not exactly oversee them. X communications can also be carried over untrusted networks, exposing the communication to illegal monitoring, loss, or manipulation. What is X$,$ Y$,$ and Z$?$ A$.$ X equals client access. Y equals protocol. Z equals firewall. B$.$ X equals remote access. Y equals firewall. Z equals antivirus. C$.$ X equals software update. Y equals operating system. Z equals laptop. D$.$ X equals system access. Y equals layer. Z equals software.