Answer:it’s c
Explanation: look at the pic
The Atlantic Ocean and the Pacific ocean
The crusades helped drive some of the seljuk Turks out of the area, but (according to Wikapedia) "It also opened up byzantium to Latin aggression which was not always dedicated to Byzantium's enemies"
Also, the Fourth crusade (made up of Latin crusaders) sacked Byzantium and greatly reduced power in the empire.
D) He didn't want to end the war by dropping a bomb, he wanted to fight for his side. So, the answer would be D.
Hope I could help!
-Marshy