The correct answer is D. All of the above.
Population aging is a demographic trend observed in Telangana, meaning that the proportion of elderly people in the population is increasing. This is due to a number of factors, including a decline in birth rates and an increase in life expectancy.
A decline in birth rates means that there are fewer children being born each year. This can be due to a number of factors, such as economic factors, social factors, and cultural factors. A decline in birth rates leads to a smaller proportion of young people in the population, which in turn leads to an increase in the proportion of elderly people.
An increase in life expectancy means that people are living longer. This can be due to a number of factors, such as advances in medical technology, improvements in public health, and changes in lifestyle. An increase in life expectancy leads to a larger proportion of elderly people in the population.
Population aging has a number of implications for Telangana. It can lead to a number of challenges, such as an increase in the demand for healthcare and social services, a decrease in the workforce, and a change in the political landscape. However, it also presents a number of opportunities, such as a chance to develop new industries and services that cater to the elderly population.