In the Above Figure Which of the Following Is True

In the above figure which of the following is true?

A) Enough change in the dark blue phenotype is seen to suggest that the population is evolving.
B) The light color phenotype is being selected for by songbird predation.
C) Differential reproductive rate is having an effect on evolution.
D) There is no evidence to support observable evolution within this population.
E) All of these are true.