In the early 1700s, a small religious group know as the German Baptist Brethren left Europe to settle in the eastern part of Pennsylvania. The orginal group of 50 families grew to 58,000 people by the late 1800's. In 1882, a part of the group split off as a result of differences in accepting modern machinery and marriage outside of their group. This Old Order isolated themselves from the other group and other people. In the 1950's a study was done to compare the Old Order to the original West German population and the neighboring population. Blood samples were taken from people in all 3 areas and blood typing tests were preformed. The study revealed the following. West germen 45%
nebiorong population in U. S 40%
Old order 60%

Which of the following statements BEST indicates the type of evolution that occurred in the Old Order population?

A) Genetic Drift, bottleneck effect, was the result of the Old order moving away from West Germany and moving closer to their US neighbors.

B) Gene flow occurred between the West Germans and the US population resulting in the alleles frequencies of both groups becoming more similar.

C) Genetic drift, founder's effect resulted in a change in allels frequencies as compared to the original group from Germany and the surrounding population.