Which method is effective for making a shape stand out from its background?

Use contrasting colour or value, a clear outline, or surrounding empty space.

A shape stands out when the figure-ground relationship is easy to perceive. Contrast in colour or value, such as light against dark, gives the figure a different visual identity from its surroundings. A clear outline reinforces its boundary, while empty space around it prevents nearby forms from competing for attention. These methods work together to increase separation and legibility, so option A is correct. Option B reduces contrast and can make the figure merge with the background. Option C weakens the edge that tells the eye where the shape ends, and option D deliberately makes the figure part of the surrounding pattern. The exact method may vary with the artwork, but the governing principle is controlled contrast between figure and ground.

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