Questions Refer to the Image Below

Questions refer to the image below. Devshirme in the Balkans
-All of the following were methods used by the Ottoman Sultans to legitimize their rule EXCEPT:

A) the adoption of Byzantine bureaucratic administrative practices.
B) the building of monumental architecture like Topkapi Palace and Suleymaniye Mosque.
C) proclaiming religious authority, as well as political authority.
D) the extensive use of a volunteer military to show widespread support for the Sultan.