Despite the disintegration of the abbasid caliphate, islam continued to spread across afro-eurasia in the period 1200–1450 primarily because of which of the following?

i hope this

explanation:

max weber's 3 types of authority. the sociologist and philosopher  max weber  distinguishes  three types of authority—charismatic,  traditional  and legal-rational—each of which corresponds to a brand of  leadership that is operative in contemporary society.

it required the unanimous approval of the states before the congress could enact any measure.