About the Stub area, full Stub area and NSSA, whichi is correct?

About the Stub area, full Stub area and NSSA, whichi is correct?

A. The Stub area can only flood Type 3 LSAs, and the full Stub area cannot flood any Type 3 LSA (including the default route LSA).

B. The biggest difference between a fully stub area and a stub area is that cannot flood the Type 3 LSA.

C. Stub area can import AS external routes. The NSSA cannot import AS external routes.

D. Stub areas can flood Type 3 and Type 4 LSAs. Full Stub areas cannot flood Type 3 and Type 4 LSAs (except Type 3 LSAs that advertise default routes).

Answer: B