Identify the different thrust areas of human development. Which one of them plays the most significant role in the development?

Human development is a ‘Human-centred’ approach towards development. It focuses on people. It is concerned with them and their well being, their needs, choices and aspirations. Purpose of human development is to create such conditions of life as may help them to develop to their own genius and lead a purposeful and creative life that they cherish.
Human development is a wider term which not only includes economic development but also includes development of one’s knowledge and educational capabilities as well as one’s health conditions so that one may lead a healthy and long life. Human development aims at building of different human capabilities so that one may make use of the natural resource, have sustainabledevelopment, have better personal and social security, have all opportunities not only to livelihood but also to ensure a decent standard of living.