What Is the Blending Theory of Inheritance

What is the blending theory of inheritance?

A) Mendel's theory of how the traits of parents are passed to offspring through the gametes
B) Darwin's theory of how traits are passed from all parts of the parent's body into the gamete to be transmitted to the offspring
C) The modern theory of how genetic information is passed from parents to offspring
D) An old theory that said that offspring show traits intermediate between those of the parents