Final answer:
The millet system in the Ottoman Empire was Option B, a system providing religious autonomy to non-Muslim communities, allowing them to regulate their internal affairs following their own religious laws.
Step-by-step explanation:
The millet system within the Ottoman Empire was a system of religious autonomy for non-Muslim communities; it allowed them to govern their own affairs (Option B). Within this system, religious communities like Orthodox Christians, Armenian Christians, and Jewish people had their own millets. Each millet was organized around its religious identity, having its own courts to settle internal affairs. The system allowed communities to conduct their affairs according to their own customs and laws, mainly in matters such as marriage, divorce, and education, while they would appear in a sharia court only for matters involving Muslims or the state itself.
By design, the millet system granted non-Muslims, known as dhimmis, a degree of autonomy within the Islamic empire. This system was an integral part of the diversity and relative stability of the Ottoman Empire, where different languages such as Turkish, Arabic, and Persian were spoken and various ethnic groups coexisted under the overarching Ottoman governance.