How can the difference of time be understood between video art and painting?

Video art can show moving images over time while a painting is generally still

The governing concept is the distinction between a time-based medium and a predominantly static visual medium. Video art unfolds through duration: images may move, change, appear in sequence, and combine with sound or editing as the viewer watches. A painting is usually a fixed visual arrangement encountered in a single surface, even though viewers may spend different amounts of time looking at it and artists may suggest movement within it. Option B is correct because it describes the normal difference without claiming that every work is identical. Options A, C, and D confuse sound, image, and performance with the basic media. Therefore, duration and moving images are key to understanding video art.

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