Correct option is D
Concept:
Exponential population growth
N(t) = N0ert
Here, r represents the intrinsic growth rate.
Solution:
N(t) = N0ert
where, N(t) is the population at time t, N0 is the initial population, and r is the intrinsic growth rate.
Population A grows the fastest, showing a steep increase.
Population B grows more moderately, with a gentler curve compared to A.
Population C grows the slowest, with the flattest curve among the three.
Since the growth rate r dictates the steepness of the exponential curve, the following relationship can be
inferred based on the graph rA > rB > rc
Population A has the highest growth rate rA because its curve rises the fastest.
Population B has a slower growth rate rB than A but faster than C.
Population C has the slowest growth rate rc.
The correct answer is Option ( d).



