In which situation will shape rhythm be clear?

When similar shapes repeat at regular intervals

Shape rhythm is the visual sense of movement created when shapes or motifs recur in a planned pattern. The eye notices both repetition and the intervals between repeated units; regular intervals make the beat stable and easy to follow. Therefore, option A is correct. For example, a row of similarly sized leaves, circles, or arches repeated with controlled spacing can guide the eye across a design. Option B removes the repetition needed for a recurring visual beat. Option C removes the shapes entirely, so no rhythm can be perceived. Option D is unsuitable because a recognisable shape normally needs a visible or implied boundary. Variation can make rhythm lively, but some organised recurrence must remain. Thus, repetition plus interval is the governing concept.

This is a Class 9 Art Education question. Chapter: Elements of Art. Topic: Shape.