01 What can be formed by mixing a primary colour with its neighbouring secondary colour?
Answer and explanation
Correct answer: C. Tertiary colour
Explanation: The governing concept is tertiary-colour formation on the colour wheel. Mixing a primary colour with a neighbouring secondary colour produces a tertiary colour, such as red mixed with orange to make red-orange, or blue mixed with green to make blue-green. Therefore option C is correct. White, black, and neutral colours are not the standard result of these adjacent colour combinations.