Answer:
B. The Ottoman Empire was ruled by a series of ineffective sultans.
Step-by-step explanation:
Though the reign of Suleyman First was a watermark in the history of the Ottoman empire, it also shows signs of weakness. Fed up of his duties he confines himself to his harem and the position of grand vizier becomes strong. This proved to be a reason for faction among the public for the loyalty to the ruler. More subordinate positions become strong and corruption engulfed the nobility. This results in the decline of the Ottoman Empire.