I believe the correct answer is in contrast to Greek
temples, Roman temples usually had columns attached to the walls completely or
partly which makes a pseudo-peripteral structure.
Roman temples had a pseudo-peripteral structure rather than
peripteral structure that Greek temples had. The temple of pseudo-peripteral
structure has free standing columns in the front, but the columns along the
sides are engaged (attached partly or completely to the wall) in the peripheral
walls of the naos. For example, the Temple of Athena Nike and Temple of Venus
and Roma have this kind of structure.
The principle of art concerned with diversity or contrast is that of variety. Variety is brought about by using different colors, sizes and shapes in a work of art. It is the partner of unity. Artists seek the balance between the two so IT IS UNITY
