Suppose a species of beetle feeds on grass in a grassland ecosystem toads prey on the beetle in which of the following scenarios would a predator become a limiting factor for the beetle population

The possible answers are 
A.a drought reduces the toad population 
B. an influx of soil nutrients results in increased grass growth 
C.a hawk species moves in that hunts toads
D.the toad population increases after a warm, wet spring

The correct answer is D

The increase in numbers in the toad population after a warm and wet spring would mean that there are more toads that prey on the beetles and that they are limiting the beetle population by hunting them.