Which are the main primary colours in traditional painting?

Correct answer: Red Yellow Blue

In the traditional painter’s colour model, red, yellow, and blue are taught as the three primary colours because they serve as the basic starting colours for mixing many other hues. Therefore, option A is correct. Green, orange, and violet are commonly treated as secondary colours formed by mixing primary colours. Black, white, grey, pink, brown, and golden are not the standard set of traditional primary colours in this school-level system.