Answer: Insulae refers to ancient Roman apartment building which housed the urban citizen population of lower or middle class status.
Explanation:
Insulae refers to a type of ancient Roman apartment building for multifamily use. The building housed ordinary people of lower or middle class status. It had about four or five stories and six to seven units in the building. The ground floors were shops and businesses with the living space upstairs. The apartments were called coenacula and are divided into several rooms.
