Questions Refer to the Image Below

Questions refer to the image below. Devshirme in the Balkans
-The expansion of the Ottoman Empire was driven primarily by which of the following?

A) The efforts of Sufi missionaries that emphasized a personal relationship with Allah
B) An Islamic Reformation that resolved Sunni-Shi'a differences
C) Military conquest, highlighted by the capture of Constaninople
D) An alliance with the Mughal Empire to defeat and occupy the Safavid dynasty of Persia