What is the correct tertiary transition from red toward yellow on the colour wheel?

Correct answer: Red then red-orange then orange then yellow-orange then yellow

The governing concept is the ordered progression of neighbouring hues on a colour wheel. Moving from red toward yellow passes first through red-orange, reaches orange, and then proceeds through yellow-orange before arriving at yellow. Therefore, option A gives the correct continuous sequence. Red-violet and violet move away from yellow on the opposite side, while the sequences containing yellow-green or green do not follow the direct red-to-yellow path.