What is the most appropriate RtrA configuration for full connectivity?

Refer to the displayed graphic:

RtrB and RtrC are configured for RIPv1 and have complete connectivity. RtrA is added to the network. What is the most appropriate RtrA configuration for full connectivity?

A.
RtrA(config)# router rip
RtrA(config-router)# network 10.0.0.0
RtrA(config-router)# network 172.16.0.0
RtrA(config-router)# network 192.168.1.0

B.
RtrA(config)# router rip
RtrA(config-router)# network 10.0.0.0

C.
RtrA(config)# router rip
RtrA(config-router)# network 10.0.0.0
RtrA(config-router)# network 172.16.0.0

D.
RtrA(config)# router rip
RtrA(config-router)# network 10.0.0.0
RtrA(config-router)# network 192.168.1.0