How can you prevent routing loops when performing mutual redistribution between two OSPF domains on multiple routes?

How can you prevent routing loops when performing mutual redistribution between two OSPF domains on multiple routes?
A . No action is required, OSPF prevents routing loops by design
B . Prevent routes from being redistributed into their original OSPF domain
C . Redistribute only external routes between OSPF domains
D . Make sure that the redistributing routes are members of Area 0 in both OSPF domains

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Answer: B