Why Did the Pre-Mendelian Theory of Blending Inheritance Pose a Major

Multiple Choice

Why did the pre-Mendelian theory of blending inheritance pose a major challenge to Charles Darwin's theory of evolution by natural selection?

A) Blending inheritance would eliminate variation in a population.
B) With blending inheritance, genes are passed down across generations even when they are not visibly expressed in offspring.
C) The hereditary determinants of phenotype are particulate.
D) Blending inheritance does not challenge Darwin's theory of natural selection.