Refer to the exhibit. Looking at the topology diagram and the partial router configurations shown, which statement is true? （）

• A、The NProuter has two OSPF neighbors in the "Full" adjacency state
• B、The NProuter serial0/0 interface has the OSPF dead timer set to 10 seconds
• C、The NProuter serial0/0 interface has been configured with an OSPF network type of "pointtopoint"
• D、The 10.1.1.1 and 10.1.1.2 routers are not using the default OSPF dead and hello timers setting
• E、The "Mismatched" error is caus ed by the expiration of the OSPF timers