Which of the following statements best describes the function of an OSPF Type 4 LSA?

Which of the following statements best describes the function of an OSPF Type 4 LSA?
A . A Type 4 LSA is originated by an ABR to describe a route to an ASBR to routers outside the area.
B . A Type 4 LSA is originated by an ASBR to describe a route to itself to routers outside the area.
C . A Type 4 LSA is originated by an ABR that is connected to a stub area. The LSA is injected into the backbone area to provide routing information.
D . A Type 4 LSA is originated by an ABR that is connected to a stub area. The LSA is injected into the stub area to provide routing information.

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Answer: A