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.

i believe that the answer to the question provided above is that  establishing smaller ethnic communities within larger communities  gives more chance for people to know each other more but this might lead to the  conflict between groups.

answer; (d) i believe that the correct answer is americans finally ran out of ammunition;