The correct answer is statecraft.The ArthashastraThe Arthashastra is one of the earliest works of political realism to have been written, along with Sun Tzu's The Art of War and Machiavelli's The Prince.Kautilya Arthashastra is a unique treatise on the art of statecraft or governance, wherein every single aspect of human life is subject to the jurisdiction of the state. Hence, Option 3 is correct.His detailed work clearly laid down an organizational set-up, and there was a clear-cut division of ethics and politics. The 'Arthashastra' is a treasure of Political Philosophy. It is considered the most comprehensive treatise on statecraft of classical times.The first-ever book written on Practice of Management, this treatise is also about foreign policy, administration, economic reforms, policies, and war.It is a primeval Indian discourse on statecraft, economic policy, and military strategy. It was written in Sanskrit. Kautilya's Arthasashtra was composed between the 3rd to 2nd Century B.C.It is mainly a work of the art of government.In his view, for the smooth functioning of administration and the welfare of the people, the king had to be acquainted with the four Vedas and four sciences of government (Anvikashaki, Trai, Varta, and Dandniti).