Which policy among the Gunpowder Empires almost always led to a crisis of succession when a sultan died, eventually weakening the empires? * A) The military refused to follow the new sultan. B) The sultana had to marry the new sultan.
C) The vizier always succeeded a sultan, leading to jealousy among advisers.
D) The sultan had killed all his rivals, leaving no one competent to succeed him.

How was Mehmet II able to conquer Constantinople?
A) The evaded the city's defenses by transporting armed ships over the hills directly in the harbor.
B) The laid siege to the city until it surrendered. C) He fought and won in single combat with the Byzantine Emperor.
D) He negotiated a surrender with the Byzantine Emperor.​