Which of the following is a definition of the process of natural selection?
a) In each generation, some individuals may, just by chance, have more offspring than other individuals and their traits will become more common in that population.
b) More advantageous traits in a particular environment allow individuals with those traits to have more offspring; as a result their heritable traits become more common in succeeding generations of the population.
c) Mutations occur at random in a population causing populations to change over time as those mutations are inherited from one generation to the next.
