In basilica plan church architecture, the church doorways were known as the portal. the portal led into the nave of the church. which statement best decribes the meaning of a nave?

A nave is the central part of the church where people stand or sit (depending on the type of the church or the religion), and it is usually rectangular as seen in the western world. It is separated from the rest of the church with pillars on sides, and by a step or a rail towards the chancel.