Why did the abbasid dynasty encourage, but not force, non-muslims to convert to islam? pleas hurry

a they needed the income from taxes assessed on non-muslims.
b they struggled to communicate because many non-muslims did not understand arabic.
c islam's holy book teaches respect for all knowledge and people of faith.
d they were more concerned with increasing the size of their empire.

a. They needed the income from taxes assessed on non-Muslims.

Explanation:

The main reason why the Abbasid dynasty encouraged, but did not force, non-Muslims to convert to Islam was because they needed the income from taxes assessed on non-Muslims. Based on this, we can conclude that their reasons were mostly economic ones. If the Abbasid empire became homogeneous, they would not be able to enjoy the benefits that a diverse empire gave them.

nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.  

its c