Which colour can be formed by adding white to orange?

Correct answer: Light orange or peach

Adding white to orange reduces its visual intensity and increases its lightness, producing an orange tint. Depending on the proportion of white and the pigment used, it may look like light orange or a peach-like colour. It cannot become dark blue, pure green, or black because white lightens the starting colour rather than changing it into an unrelated hue. Thus option A is correct.