A Relationship Between Mendel's Work on Genetics and Inheritance,and Evolutionary

A relationship between Mendel's work on genetics and inheritance,and evolutionary theory proposed by Darwin,is currently

A) that Darwin could not validate and publish his theory until he read the works by Mendel.
B) founded in Mendel's genetics research proving that each generation evolves at a uniform rate, as Darwin predicted.
C) that genetic variations due to mutations and other factors counter the proposed mechanisms of evolution proposed by Darwin.
D) in a modern evolutionary synthesis of genetic traits and species observations beyond Mendel's and Darwin's proposals.