Find out the F₂ phenotypic ratio, when a mulatto individual is crossed to its homozygous dominant individual. (Given that skin colour is controlled by three gene pairs).

• A

  1 : 4 : 6 : 4 : 1

• B

  1 : 1 : 1 : 1

• C

  1 : 3 : 3 : 1

• D

  3 : 1