Which of These Principles of Evolution,as Described by Darwin's Theory,is

Which of these principles of evolution,as described by Darwin's theory,is correctly matched with its role in evolution?

A) Principle of variation: Offspring must resemble their parents more than they resemble unrelated individuals.
B) Principle of selection: Variation in morphology,physiology,and behavior must be present in a population for selection to occur.
C) Principle of variation: Variation in morphology,physiology,and behavior must be present in a population for selection to occur.
D) Principle of heredity: Some genotypes of a population should be more successful at surviving and reproducing than other genotypes in a given environment.
E) None of the answer options are correct.