Answer & ExplanationAnswer: [C]
The correct answer is Balban. The Theory of Kingship was formulated by Ghiyas-ud-din-Balban. He was the ninth sultan of the Mamluk Dynasty and he ruled from 1266 to 1287. Before becoming a sultan, Balban was a slave bought by Iltutmish who is considered as the effective founder of the Delhi Sultanate.