The correct option is Is either stable or grows slowly..
Explanation
The Demographic Transition Theory explains the relationship between demographic changes and socio-economic development. It predicts that as a society progresses from an agrarian and rural economy to an urban and industrial one, it transitions from high birth and death rates to low birth and death rates. This transition is typically categorized into three distinct stages.
Analysis of the Stages:
- First Stage: Characterized by high fertility and high mortality. The population growth is slow, and numbers fluctuate wildly due to epidemics and food insecurity.
- Second Stage: Marked by a sudden decline in mortality due to improvements in sanitation and healthcare, while fertility remains high. This divergence leads to rapid population growth (population explosion).
- Third Stage: In this stage, fertility rates decline significantly to align with low mortality rates. The population growth slows down considerably, and the population becomes either stable or grows very slowly. This stage is associated with urbanization, high literacy, and deliberate family planning.
Key Takeaway:
The Third Stage of the Demographic Transition Theory is defined by low birth rates and low death rates, resulting in a stable or slowly growing population.