Which is the most accurate definition of a secondary colour in traditional pigment mixing?

Correct answer: A colour formed by controlled mixing of two primary colours

In the traditional subtractive pigment system, a secondary colour is produced by mixing two primary pigments in suitable proportions. For example, yellow mixed with blue can produce green, while red mixed with yellow can produce orange, depending on the pigment system. Option A is correct because it states the defining relationship. Black-and-white mixtures create tones or neutrals, three primaries usually mute a colour, and a lighter version is a tint.