The correct answer is B) organizing them into millets, or religious communities.
The Ottoman empire impacted the non-Muslim peoples of the empire in eastern Europe by organizing them into millets, or religious communities.
The Ottoman Empire did tolerate people that professed other religions. That is why the Ottomans created the Millet System, the kind os system that allowed Christians and Jews to obey their religious rules just with the condition that these people were loyal to the Empire and that they continually pay the due taxes.