Was most gladiators in Rome were poor criminals prisoners of war or Artisans
Households servants
Slaves
Rich

Slaves

Explanation:

It wouldn't make sense for them to send rich people to go fight to the death, and they treated slaves badly, so it is slaves.

the lowest among the social higher rank were the working class. this class remained detached to the political progression   of the country and was hostile to the other two classes

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).