Which basis is useful for understanding the difference between public art and private artwork?

Social location of art and audience group

The governing concept is that public and private art are distinguished mainly by setting, access, intended audience, and social relationship, not by one isolated visual feature. Option A is correct because a mural in a street, park sculpture, or civic installation is encountered by a broad and often unplanned audience, whereas a private artwork may be made for personal reflection, a household, a collection, or a restricted group. Location and audience together reveal how the work functions socially. Paper size and colour name may vary in either category and therefore cannot establish the distinction. The artist’s favourite food is irrelevant. A public work can still express personal ideas, and a private work can have public significance, but A remains the most useful basis.

This is a Class 9 Art Education question. Chapter: Introduction to Art. Topic: Types of art.