How does an artist control expression while selecting colours?

By using colours to suggest mood, emotions, and atmosphere

The governing concept is that colour is an expressive element, not merely a decorative addition. An artist deliberately selects hue, brightness, saturation, and colour temperature to guide the viewer’s emotional response and to establish the atmosphere of a picture. Warm colours such as red, orange, and yellow may suggest energy, closeness, or excitement, while cool or muted colours may suggest calmness, distance, sadness, or seriousness. Therefore option B is correct: purposeful colour choices communicate mood, emotion, and atmosphere. Option A denies artistic intention, option C removes an important expressive resource, and option D reduces colour to decoration. The exact meaning can vary with context, but purposeful selection remains essential.

This is a Class 9 Art Education question. Chapter: Introduction to Art. Topic: Art as a form of expression.