Which colour is generally formed by adding white to red?

Correct answer: Pink

Adding white lightens red and produces a lighter red commonly called pink, so option B is correct. In colour-theory language, this result is a tint of red. Orange is made by mixing red with yellow, green is associated with blue and yellow, and violet is associated with red and blue. The exact appearance may vary with the paint, but white does not change red into those other colour families.