Which secondary colour lies between blue and red on a colour wheel?

Correct answer: Violet

The governing concept is the parent-colour relationship of secondary colours. Blue and red are primary colours, and mixing them produces violet; consequently, violet is positioned between blue and red on a traditional colour wheel. Option C is correct. Green belongs between yellow and blue because those colours form it, while orange belongs between red and yellow. Yellow itself is primary, not the secondary colour sought here.