Which colour is formed when more blue is added to green?

Correct answer: Blue-green

The governing concept is proportional mixing on the colour wheel. When blue is added in a greater amount to green, the mixture moves toward blue and becomes blue-green, a tertiary colour. Option B is correct because blue is the dominant direction. Yellow-green would require more yellow in green; red-orange and red-violet involve red and are unrelated to this particular mixture.