The correct option is D All of the above
During the Delhi Sultanate period, the group of priests included Brahmins and Ulemas. Brahmins, as well as Ulemas, were given tax-free land grants so they were also rich and powerful. During most of Sultanate era (except under Alauddin Khilji}, the influence of Ulema was so much that it often influenced the policies and administration of the Sultan.