Which of the following descriptions about OSPF default routing is wrong?

Which of the following descriptions about OSPF default routing is wrong?
A . The OSPF default route can be issued by the Area Border Router (ABR) to issue Type 3 default LSAs to guide routers in the area to forward packets between areas
B .  When the router has no exact matching route, it can forward the message through the default route
C .  Due to the hierarchical management of OSPF routes, the priority of class 5 and class 7 default routes is higher than that of class 3 default routes
D .  Autonomous System Boundary Router (ASBR) publishes default LSA of type 5 or default LSA of type 7, which is used to guide routes in the autonomous system (AS) to access the outside of the autonomous system

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Answer: D