In Nicholson's Experiments with Blowflies, Population Cycles Most Often Occurred

In Nicholson's experiments with blowflies, population cycles most often occurred when adults

A) and maggots both had an unlimited food supply.
B) and maggots both had a limited food supply.
C) had a limited food supply and maggots had an unlimited food supply.
D) had an unlimited food supply and maggots had a limited food supply.