Every election in U. S. society reaffirms the principle of rule of law
divine right to rule
limited government
consent of the governed

i believe 5 is correct answer

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).