Why can the viewer's movement become part of meaning in installation art?

Because the viewer moves through space and experiences objects and environment

The governing concept is that installation art is spatial and experiential rather than only a flat image viewed from one fixed position. Objects, light, sound, materials, scale, pathways, and surrounding space are arranged so that the viewer encounters them through movement. As the viewer changes position, different relationships, viewpoints, distances, and sequences become noticeable; this bodily journey can therefore contribute to the work's meaning. Option D is correct because it describes this active experience. Option A is absurd because viewing is necessary, option B wrongly reduces installation to a flat picture, and option C is false because installations often contain many objects or constructed elements.

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