Why did the Second Crusade result in failure?
 A. The crusaders were not able to enter the Holy Land and were
 forced to return home.
 B. Muslim forces were more organized and defeated the armies led
 by European kings.
 C. The kings of the Crusader States converted to Islam and defeated
 European invaders,
 D. Leaders of the Byzantine Empire supported Muslim forces to help
 defeat the crusaders,
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