Exponential growth can be defined can be defined as the growth of organisms in a geometric or exponential manner, when there is unlimited resources in the habitat. Exponential growth represents a J-shaped graph.
As the given graph shows a sudden and rapid increase in human population and shows a J-shaped curve, it describes the exponential growth.
The graph is an exponential graph because we see that the value is raising suddenly when it just go beyond zero. A straight line in the vertical direction shows exponential growth of a value therefore option C is the correct answer
