What colour is generally produced by mixing red and blue?

Correct answer: Violet

In the traditional school model of subtractive paint mixing, red and blue are combined to produce violet or purple. The exact appearance can vary with the pigments and with the amount of each colour, but violet is the expected classroom answer. Thus, option C is correct. Green is made from yellow and blue, orange from red and yellow, and yellow is a primary colour rather than the usual result of mixing red with blue.