The graph shows the changing populations of wolves and moose on Isle Royale National Park. Wolves are predators, and moose are their prey. Which statement about the populations of wolves and moose is most strongly supported by the data in the graph?
a
Wolves and moose each act as a limiting factor on each other's populations.
b
Moose are a limiting factor on the wolf population, but wolves do not affect the moose population.
c
Wolves are a limiting factor on the moose population, but moose do not affect the wolf population.
d
The wolf and moose population sizes are determined by abiotic limiting factors, and not predator-prey relationships.