The correct option is A People love each other and resolve their differences amicably.
Social life of a person defines his nature and interaction with other people. Society as a whole is supposed to live in peace and cooperation so that collective upliftment of the community can be achieved. Harmonious social life denotes that people have affection, gratitude and respect for each other and are inclined to resolve their disputes and conflicts by peaceful means rather than resorting to violent measures.