How will orange appear when the amount of red is greater?

Correct answer: Reddish orange

Orange is formed by mixing red and yellow. If more red is added or red is present in the greater proportion, the orange hue moves toward red and appears reddish orange. Thus, option C is correct. Yellowish orange would result when yellow dominates. Green and blue are not the component colours in this standard orange mixture, so the remaining options are unsuitable.