What is the most likely reason for the dispartly between the actual network numbers at the branches and the routes in the routing table on Gateway-Router?()<br /> <img src="https://nimg.ppkao.com/2018-07/zhoulian/2018072316264451996.jpg?sign=0e03173f62d6e517d8e775c8d21954be&t=62d0a599" />
A、Branch-Router2 is configured to send both RIPv1 and RIPv2 updates.
B、Gateway-Router is configured to only receive RIPv2 updates.
C、Gateway-router is configured to receive only RIPv1 updates.
D、Branch-Router1 is configured to only send RIPv1 updates.