What is the best way to avoid dullness in a monochromatic scheme?

Correct answer: Keeping a good range of values

Correct answer: D, keeping a good range of values. A monochromatic scheme uses one hue or colour family, but it does not require every area to have the same lightness. By varying values from light to middle to dark, the artist can separate objects, show volume, create focus, and produce depth while maintaining colour unity. A is wrong because one value makes areas look flat and reduces contrast, so the design may become dull. B is wrong because removing all figures destroys the subject rather than improving the colour scheme. C is wrong because writing only a title does not create visual variety or develop the composition. D is correct because a controlled value range adds interest without abandoning the monochromatic relationship. The range should still be organised; random extremes may weaken harmony. Memory cue: monochromatic means one hue, not one value.