Which additional configuration must an engineer apply to router R1 so it filters all MSDP SA messages from Domain-C?

Refer to the exhibit

Router R1 is configured to advertise outgoing SA messages to routers R2 and R3, but to receive incoming SA messages only from R2 .

Which additional configuration must an engineer apply to router R1 so it filters all MSDP SA messages from Domain-C?
A . R1# ip msdp sa-filter in 192.168.3.1
B . R3# ip msdp sa-filter out 192.168.3.1
C . R3# ip msdp password peer 192.168.1.1
D . R1# ip msdp password peer 192.168.3.1

Answer: A

Explanation:

Reference: https://www.cisco.com/c/en/us/support/docs/ip/ip-multicast/13717-49.html