What was a reason the federal government passed the Immigration Act of 1924?
A.
Casualties during World War I created a need for labor in America.
B.
Treaties following World War I forced America to accept fewer immigrants.
C.
Refugees from World War I needed an easier way to migrate to America.
D.
America's involvement in World War I created distrust of foreigners.

D. American’s involvement in World War I created distrust of foreigners

Explanation:

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).