Data corresponding to three different populations of a land snail species are tabulated below. Each population inhabits a different region within the boundaries of a U. S. national park, and at this time, no migration takes place between any of the populations. Which of the following predictions is most likely if migration suddenly becomes possible between populations B (Population size 180, number of alleles per gene 1.6) and C (Population size 1064, number of alleles per gene 5.1)? A. The average number of alleles per gene for population B will increase but will decrease for population C. B. The average number of alleles per gene for both populations A and B will decrease. C. The average number of alleles per gene for all populations will increase. D. The average number of alleles per gene for population C will decrease but will increase for population A.