Which colour arrangement will create the most convincing depth in a forest scene?

Correct answer: Yellow-green in the foreground and muted blue-green in the distance

A relatively clear, warmer yellow-green in the foreground tends to appear closer, while a cooler, less saturated blue-green tends to recede. This uses both warm-cool contrast and atmospheric perspective, in which distant colours often look softer and less saturated. Therefore A gives the strongest depth cue.