Now it is required that the RTC must not learn the routes configured in the above RTA, what configurations can be performed on the router?

In the topology shown in the figure, perform the following configurations on RTA:

RTA-ospf-1-area-0.0.0.1]network 192.168.0.0 0.0.0.255

RTA-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255

RTA-ospf-1-area-0.0.0.1]network 192.168.2.0 0.0.0.255

RTA-ospf-1-area-0.0.0.1]network 192.168.3.0 0.0.0.255

Now it is required that the RTC must not learn the routes configured in the above RTA, what configurations can be performed on the router?
A . RTB] acl number 2000
RTB-acl-basic-2000] rule 0 permit source 192.168.0.0 0.0.255.255
RTB-ospf-1-area-0.0.0.1] filter 2000 export
B. RTB-ospf-1-area-0.0.0.1]abr-summar192.168.0.0 255.255.252.0 not-advertise
C. RTB] acl number 2000
RTB-acl-basic-2000] rule 0 permit source 192.168.0.0 0.0.255.255
RTB-ospf-1] filter-polic2000 import
D. RTC] acl number 2000
RTC-acl-basic-2000] rule 0 permit source 192.168.0.0 0.0.255.255
RTC-ospf-1] filter-polic2000 import