Answer:
A) doubling time growth model
Step-by-step explanation:
Doubling time growth model can be defined as the total or overall number of time it takes for a specific quantity to increase by doubling in value or size at a constant growth rate.
Mathematically, the doubling time growth model is given by the rule of 70;
[tex]dt = \frac{70}{r}[/tex]
Where,
dt represents the doubling time.
r is the growth rate.
Hence, a doubling time growth model would best describe the population of a city if it increases in size by a factor of two every 29 years. The doubling time growth model is typically used to study or model the human population growth.