How can different variations of red-violet be created for flower petals?

Correct answer: By varying the proportions of red and violet and the colour value

The governing concepts are hue variation and value variation. Changing the proportions of red and violet shifts the mixture toward a redder or more violet appearance. Adding white creates lighter tints, while a small amount of black can create darker shades, allowing highlights and shadows across petals. Therefore, option A is correct. Much black alone usually dulls the colour, the same colour everywhere removes variation, and green plus yellow produces a different hue rather than red-violet.