Which colours can be more useful in a sunset scene?

Correct answer: Red, orange, and yellow

The governing concept is choosing colours according to the visual character and mood of a scene. Sunsets commonly show warm light, so red, orange, and yellow are useful for representing the glowing sky, reflected light, and changing horizon. Option A is therefore the best answer. The word “can” is important: an artist may include purple, pink, blue, or grey as the sky darkens, but the listed warm group is the most characteristic starting choice. Black alone would remove most colour and detail, while grey alone would suggest a dull or overcast atmosphere rather than the usual warm glow. Blue and green can appear in shadows or landscape elements, but they are not the most typical colours for the illuminated sunset sky.