Which secondary colour is most suitable for showing a ripe orange fruit in a painting?

Correct answer: Orange

The object named in the question is a ripe orange fruit, so orange is the most suitable representative colour in a simple painting exercise. In traditional colour theory, orange is a secondary colour formed by mixing the primary colours red and yellow. Green may represent leaves or an unripe fruit, while violet and blue do not normally identify the fruit’s ripe outer colour. Thus option C is correct.