Correct answer: B). More organisms are born than can survive
The Darwin theory of natural selection states that living things with beneficial traits give more offspring than others. This causes a change in the traits of living organism over time.
More individuals are produced in each generation that can survive, there is a phenotypic variation among the population and it is inheritable. Those individuals that are better suited to the environment can survive and are able to produce offspring.
Hence, the correct answer would be option B.