Which colour is formed by mixing yellow and orange?

Correct answer: Yellow-orange

The correct answer is B, yellow-orange. In the traditional colour wheel, a tertiary colour is made by mixing a primary colour with the neighbouring secondary colour. Yellow is primary and orange is secondary, so their mixture produces yellow-orange. Red-orange comes from red and orange, yellow-green from yellow and green, and blue-violet from blue and violet; therefore those distractors do not match the given mixture.