Final answer:
The form and function of early Christian basilica and Roman basilica.
Step-by-step explanation:
The form and function of an early Christian basilica relate to a Roman basilica in terms of their architectural design and purpose. Both types of basilicas have a rectangular floor plan with a central nave and side aisles. However, the early Christian basilicas added a transept, creating a cruciform shape, to symbolize the Crucifixion.
The basilica plan was chosen for Christian churches because it provided a practical layout for accommodating large congregations and emphasizing the importance of the interior space. Unlike Greek or Roman temple plans, which were focused on the exterior and associated with pagan cults, the basilica plan allowed for a spacious and meaningful place of worship that reflected the authority of Christianity.