The correct answer is A) due to sanitation and agricultural advances, yet poverty and lack of family planning.
Most of the growth in the global population is seen in developing countries due to sanitation and agricultural advances, yet poverty and lack of family planning.
Sanitation services in developing countries have served to control and minimize the spread of diseases, being this one of the most important factors in the growth of the population. Also, better agriculture techniques that allow food for the majority of the population and the fact that this food is nutritious, fostering the health of the citizens. However, there has been an issue with family planning and couples have had more children than what they considered to have. This increases the population and the need for more and better public services.