Which mixture produces a yellow-dominant orange?

Correct answer: More yellow and less red

Orange is a secondary colour made by mixing red and yellow pigments. The dominant component determines the direction of the hue: more red produces a red-orange, whereas more yellow produces a yellow-orange. Consequently, the mixture must contain more yellow and less red. Blue would shift the mixture toward green or dullness, and equal red and blue produces violet rather than orange. Therefore, option B is correct.