Understand Open Shortest Path First (ospf) Design Guide

ip route 203.0.113.150 255.255.255.0 203.0.113.67
This way RTA is able to reach the other subnets.
Mutual Redistribution
Mutual redistribution between protocols must be done very carefully and in a controlled manner.
Incorrect configuration could lead to potential looping of routing information.
A rule of thumb for mutual redistribution is not to allow information learned from a protocol to be
injected back into the same protocol.
Passive interfaces and distribute lists must be applied on the redistribution routers. To filter
information with link-state protocols such as OSPF is a difficult.
Distribute-list out
works on the ASBR to filter redistributed routes into other protocols. 
Distribute-list in
works on any router to prevent routes from the routing table, but it does not prevent link-state
packets from propagation; downstream routers would still have the routes.
It is better to avoid any OSPF filter as much as possible if filters can be applied on the other
protocols to prevent loops.

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To illustrate, suppose RTA, RTC, and RTE run RIP. RTC and RTA also run OSPF. Both RTC and
RTA do redistribution between RIP and OSPF.
If you do not want the RIP from RTE to be injected into the OSPF domain, put a passive interface
for RIP on E0 of RTC. However, you have allowed the RIP from RTA to be injected into OSPF.
Here is the outcome:
Note: Do not use this configuration.
RTE#
interface Ethernet0
ip address 203.0.113.15130 255.255.255.192
interface Serial0
ip address 203.0.113.152 255.255.255.192
router rip
network 203.0.113.150
RTC#
interface Ethernet0
ip address 203.0.113.67 255.255.255.192
interface Serial1
ip address 203.0.113.151 255.255.255.192
router ospf 10
redistribute rip metric 10 subnets
network 203.0.113.150 0.0.0.255 area 0
router rip
redistribute ospf 10 metric 2
passive-interface Ethernet0
network 203.0.113.150
RTA#
interface Ethernet0
ip address 203.0.113.68 255.255.255.192
router ospf 10

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 redistribute rip metric 10 subnets
network 203.0.113.150 0.0.0.255 area 0
router rip
redistribute ospf 10 metric 1
network 203.0.113.150
RTC#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default
Gateway of last resort is not set
203.0.113.150 255.255.255.192 is subnetted, 4 subnets
C 203.0.113.150 is directly connected, Serial1
C 203.0.113.64 is directly connected, Ethernet0