Read carefully the passage given below and answer the questions that follow:
Happiness, after all, is an inner state of mind. It is little dependent on outside environment. Happiness has very little to do, for instance, with whether you are rich or not rich. Some of the most miserable persons I have come across in my life are the rich people. It is true that poverty makes one miserable in a very acute way. But my point is that it is not wealth but coordination of one's thought and action which removes inner conflict. It is in that way integration of personality is achieved.
(a) What does the writer say about happiness ?
(b) What has happiness to do with wealth ?
(c) What are inner conflicts ?
(d) How is integration of personality achieved ?