The correct option is D All of the above
Indo-Islamic architecture emerged in India under the Delhi Sultanate during the 13th to 16th centuries. The introduction of Islamic architectural like true domes and arches, Beams and balconies and Extensive use of bricks were characteristic features of Delhi Sultanate architecture which can be seen in the monuments like Qutub Minar, Alauddin Khilji’s tomb and madarsa which were built during the Delhi Sultanate.