Respuesta :
Answer:
D,  It was a failure because Christian armies failed to gain full control of Jerusalem.​
Explanation:
Most of the Crusaders were utter failures, because everybody hated the Crusaders, even they're fellow Christians. We know B is wrong, because Jews didn't fight in the battle, they were mainly mercenaries working for the Islamic Caliphates. Â C is wrong, because Jerusalem was under Muslim control until recently when the State of Israel was created.