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 describes the meaning of a nave

The central open space within the church.

Explanation:

A nave is an elongated space or part of a space in Roman and Gothic church architecture. The main nave of the church extends from the nartheks, or vestibule hall, to the shells, and is flanked by any side ships separated from the main nave by a row of columns. The height of the main naves provided space for the clergy windows above the side naves. These give light to the interior of the church but leave the side ships in the shade.

i believe the answer is  the similarity is that both are sacrifices which have the same purpose and sacrifice - jesus christ, but the difference is in offering of that sacrifice.

the similarity is that both are sacrifices which have the same purpose (repenting our sins) and sacrifice - jesus christ.  the difference is in the way of the offering that sacrifice. the sacrifice of jesus on the calvary is sacrifice of his actual living body and blood, but the sacrifice of the mass is the sacrifice of the jesus through bread (body) and blood (wine). in the sacrifice on calvary jesus was offered for us; while at mass he offers himself through us.