Answer:
The correct answer will be option-A
Step-by-step explanation:
Gene pool represents the total number of genes of the individual in a particular population of interbreeding individuals.
The gene pool accounts for the biological fitness, survival rate and genetic diversity as a large gene pool increases the chances of all of this fitness and survival.
The gene pool usually includes the variants of a gene called alleles which are related to the population.
Thus, option-A is the correct answer.