What is the DIFFERENCE between the way that a distance$-$vector routing protocol and a link$-$state routing protocol update their networks?a$.$A distance$-$vector routing protocol sends out information about the network's status to all its neighbours on a set schedule.b$.$A link$-$state protocol only sends out information to other routers when there is a change in the status of the network.c$.$A link$-$state routing protocol sends out information about the network's status to all its neighbours on a set schedule.d$.$A distance$-$vector routing protocol only sends out information to other routers when there is a change in the status of the network.