A university has been studying a population of hares in a specific region of Alaska every May for the last 50 years. This population of hares has two coat colors, brown and white, that is determined by two alleles of a single gene. Scientists recorded data on the population, then determined the frequency of the alleles for brown and white fur for each year. They also recorded the amount of snow that fell the previous winter. The graph below shows their data. Which statement best predicts how the population of hares will be affected if the recent trend in snowfall continues?
A. The hare population will be forced to move to an area with more snowfall.
B. The hare population will be found in a much wider geographic range.
C. The allele for white fur will become extinct within 20 years.
D. The frequency of the allele for brown fur will continue to increase.