How can a light peach-like colour be made with poster colour?

Correct answer: By adding white to orange

A peach-like colour is a light, warm orange or pinkish-orange tint. Starting with orange and adding white lightens its value while preserving its warm hue, so option A is the suitable method. The amount of white should be adjusted gradually because more white produces a paler peach. Adding black to blue creates a dark tone, red to green tends toward a muddy neutral, and blue to violet does not create the required warm light colour.