Answer:
The correct answer is option C.
Explanation:
The exponential pattern of growth takes place in an ideal, unlimited environmental conditions, that is, where the resources are abundant. In such an environment, there exists no competition to restrict the geometric rate of growth. At the start, the growth of the population would be gradual, as there will be a lack of reproducing individuals.
However, with the increase in population numbers, the rate of growth also increases, leading to the formation of an exponential curve. Exponential growth can be witnessed in the populations, which are very small or are confined in the areas that are newly established by a species.
Thus, in the given question, the growth of the population of elephants, which is safeguarded from hunting and exhibits all the essential resources would be an ideal choice. As other examples, possess external factors affecting their growth. Though both bacteria and sparrow may reproduce at a greater rate, however, the population of elephants would develop at an exponential rate as the species are safeguarded.