Skin Colour in Humans Is Caused by Polygenic Inheritance

Multiple Choice

Skin colour in humans is caused by polygenic inheritance. Which one of the following statements is implied by this form of inheritance?

A) The skin colour of children will always be identical to one parent or the other.
B) The skin colour of children will always be intermediate to that of their parents.
C) The skin colour of children will most often be identical to that of one of their parents, but sometimes not.
D) The skin colour of children will most often be intermediate to that of their parents, but sometimes not.