Which statement correctly explains the difference between pigment and light primaries?

Correct answer: Pigments use red, yellow, blue and light uses red, green, blue

The governing concept is that different media use different colour models. In the traditional school painting model, pigment primaries are red, yellow, and blue because pigments subtract wavelengths from reflected light. In the standard emitted-light model, red, green, and blue are primary. Therefore option A is correct. The other options either reverse the systems or omit the relevant colour components.