I think it’s C but not precisely sure about it
They prove that it is impossible for all scientists to accept the same theory.
Scientists are always coming up with new theories, and there will always be people out there to disagree with them.
Peregrine falcons have a wide diet, including many types of smaller birds. These birds eat bugs like grasshoppers. So, if the grasshopper population decreases, then the birds who are a food source to peregrine falcons will also have a lower population. This means that there is a lesser amount of food for the peregrine falcons to eat, so their population will decrease as well.
Good luck with your problems!