Answer: A: The Ottoman millet system, an arrangement designed to utilize the economic contributions of non-Muslim groups within the empire while granting them limited autonomy to organize their communal affairs under their own religious leaders
Step-by-step explanation:
The second paragraph talks about how the Ottomans welcomed other groups into their areas as potentially revenue-producing subjects and allowed them wide-ranging freedoms. The best support for this would be the Millet System.
By this system, the Ottomans allowed Muslim, Christian and Jewish communities the right to govern themselves provided them accept Ottoman superiority. This drew more people into the empire and allowed the Ottomans to benefit from the economic contributions of these groups.