What effect can come by using cool colours in the background?

Correct answer: Distance and calmness

Correct answer: B, distance and calmness. Cool colours, such as blue, blue-green and some blue-violet colours, are often perceived as quiet and receding. When they are placed in the background, they can make that area seem farther away and less visually forceful. This is an artistic tendency, not an unbreakable rule; the surrounding colours and the whole composition also matter. A is wrong because the idea of a very near fire is more strongly associated with warm reds, oranges and yellows. C is wrong because roughness is a quality of texture, not the usual spatial or emotional effect of cool colour. D is wrong because colour cannot create literal loud noise. Remember: cool colours often recede, while warm colours often advance.