Answer: The correct answer is -
c. genetic equilibrium.
Genetic equilibrium can be described as a condition when gene variant or genotype of a population does not change from generation to generation. In other words, the frequency of gene variant (also called allele) in a gene pool is constant.
It occurs when there is no evolutionary force (like genetic drift, natural selection) acting upn the population, suggesting that no evolution is going on as the allele frequencies are constant.
Thus, option c) is the right answer.
