A population can remain in genetic equilibrium for a longer time in the presence of

The correct option is B Selective mating in small isolated population

• Genetic equilibrium as defined by the obedience of Hardy-Weinberg is based on the all evolutionary change and the gene pool remains constant. Sum of all the allelic frequencies is 1 and are done selective mating in small or minimum and isolated population.

So the correct option is " Selective mating in small isolated population".