Is the Effect of an Individual Permanently Leaving a Population

Multiple Choice

Is the effect of an individual permanently leaving a population likely to have a greater genetic effect if the home population was large or if the home population was small?

A) Large, because this is an example of disruptive selection.
B) Large, because natural selection will cause a bottleneck to occur in the remaining individuals.
C) Small, because the loss of just a few individuals may greatly reduce the remaining genetic variation.
D) Small, because the remaining individuals will no longer be able to practice nonrandom mating.