"His theory of kingship was based on the principles of prestige, power and justice." Who said these words about Balban?

Explanation

Dr. R.P. Tripathi, in his book 'Some Aspects of Muslim Administration', while explaining Balban’s concept of kingship, stated that “His theory of kingship was based on the principles of prestige, power and justice.” For this conclusion regarding Balban’s kingship, he used as his basis the description presented by Zia-ud-din Barani on Balban’s theory of kingship. Probably for this reason, in its preliminary and final answer keys, the Bihar Public Service Commission has accepted option (b) as correct.