The answer to your question is A. TRUE
Because developed nations have proper healthcare, hygiene, environment, and standard ways of living, it can sustain and take care of its residents. Residents can live peacefully without fearing for their next meal and because they are nourished and pampered well, they can easily enjoy and have the time to interact with each other. Human interaction is crucial to the development of nations because happy people tend to live longer. Because of living longer and healthier, they are able to reproduce properly.