Natural selection is an evolutionary mechanism by which a. advantageous traits are eliminated in a population b. advantageous traits become more common in a population c. inherited traits pass consistently through generations d. organisms choose which traits to look for in their offspring select the best answer from the choices provided

The correct answer for the fill in the blank is B) advantageous traits become more common in a population.

Theory of natural selection was given by Charles Darwin. It is an evolutionary process according to which organisms that are better suited to their environmental conditions survive and increase their number through reproduction.

In other words this represents survival of the fittest as the advantageous traits of the organisms are helping them in their survival.Therefore, advantageous traits become more common in a population according natural selection

Thus, B) is the right answer.