Um B? not really sure only one would say is B doesn't sound like it would because of organization
The Abbasids established the new position of vizier to delegate central authority, and delegated even greater authority to local emirs. The Abbasid dynasty ruled as caliphs from their capital in Baghdad, in modern Iraq, after taking over authority of the Muslim empire from the Umayyads in 750 CE.
It can cause forced labor in many parts of the world
D- all of the choices are correct
