To Prevent Service Advertisements (SAPs) from Flooding a Network, Cisco

Multiple Choice

To prevent Service Advertisements (SAPs) from flooding a network, Cisco routers do not forward them. How are services advertised to other networks?

A) each router builds its own sap table and forwards that every 60 seconds
B) each router assigns a service number and broadcasts that
C) saps aren't necessary with cisco routers
D) cisco routers filter out all saps