Correct Option: A

The archaeological record of the Indus civilization provides practically no evidence of armies, kings, slaves, social conflict, prisons, and other oft-negative traits that we traditionally associated with early civilizations. If there were neither slaves nor kings, a more egalitarian system of governance may have been practiced. Besides, compared to other ancient civilizations the houses were of nearly equal size indicating a more egalitarian social structure i.e. The Social System of the Harappans was fairly egalitarian.