Which of the Following Is a Plausible Explanation for the Typically

Multiple Choice

Which of the following is a plausible explanation for the typically slow rates of evolution over the long term?

A) Most populations have little genetic variation.
B) Natural selection is typically a stabilizing phenomenon.
C) Directional selection is commonplace.
D) Genetic drift counters the effects of selection, particularly in large populations.
E) Mutation rates are very high.