Help with a few Latin questions? That'd be awesome!

1) Nonne in Campania est?

AWhere is Campania?

BHe is in Campania, isn't he? <-- my guess

CHe is not in Campania, is he?

DWhere is he?

2) Num Vesuvius populum terruit?

ADid Vesuvius frighten the people? <-- my guess

BVesuvius did not frighten the people, did it?

CVesuvius did frighten the people, didn't it?

DWere the people frightened by Vesuvius?

3) Nonne familiae in casis mansuerunt?

AWhich families remained in the houses?

BThe families remained in the houses, didn't they? <-- my guess

CAren't the families going to remain in the houses?

DThe families will remain in the houses, won't they?

4) Ubi navigavisti?

AWhy did you sail?

BWhen did you sail? <-- my guess

CYou are sailed aren't you?

DWho sailed?

5) Estne Vesuvius nunc ibi?

AIs he at Vesuvius now?

BWhere is Vesuvius now?

CIsn't Vesuvius there now? <-- my guess

DIs Vesuvius there now?

Thanks for all help!