Which three statements are true regarding not-so-stubby…

Which three statements are true regarding not-so-stubby areas (NSSAs)? (Choose three.)

A.
You cannot configure an area as both an NSSA and a stub area.

B.
An NSSA exports an external route to the backbone area as a Type 5 LSA.

C.
An NSSA exports an external route as a Type 3 LSA.

D.
An NSSA does not require an ABR.

E.
An NSSA imports an external route as a Type 7 LSA.