Babies with very low or very high birth weight are less likely to survive. The graph shows the percentage of babies born at different weights.
% Babies Born at Different Weights

Which statement is a valid claim that could be made using the data in the graph?
~Directional selection is occurring because the graph favors an extreme
~stabilizing selection is occurring because the average is favored
~disruptive selection is occurring because the two extremes are favored
~biodiversity variation is occurring because there is an increase in trail variation