The Ottomans Marked the Establishment of a Major Islamic Power

The Ottomans marked the establishment of a major Islamic power in western Asia by

A) The power that replaced the Mongol khanates in Mongolia.
B) Beginning as a group of Muslim settlers from the steppes of Mongolia.
C) Bringing the Byzantine Empire to an end through the conquest of Constantinople.
D) Having defeated Timur the Lame's army.
E) Paying their soldiers in plunder and conquered land.