Answer:
D. When there is no competition
Step-by-step explanation:
If there is no competition in a population, exponential growth can occur.
Without competition, resources are not limited and a population can grow rapidly.
With limited resources, a high death rate, and a reached carrying capacity, population growth is strongly limited and cannot grow at an exponential rate.
So, answer choices A, B, and C are all incorrect.
The correct answer is D. When there is no competition