Use the Graphs to Answer the Following Question

Use the graphs to answer the following question.
(a)


(b)


Graph (b) in the figure shows the normal fluctuations of a population of grouse, a ground-nesting bird. Assuming graph (a) in the figure is the result of some experimental treatment in the grouse population, what can be concluded?

A) The experimental treatment intensified the population cycling.
B) The experimental treatment did not affect population cycling in this species.
C) The experimental treatment has most likely identified the cause of population cycling.
D) The experimental treatment involved the introduction of a predator of the bird.