In sultani period how many provinces wew established in bengal?

Explanation:

         The Sultanate of Bengal (Bengali: শাহী বাংলা, Persian: شاهی بنگاله‎ Shāhī Bangālah), also known as the Bengal Sultanate or simply Bengal (Persian: بنگاله‎ Bangālah, Bengali: বাংলা, romanized: Bangla),[2] was an empire[3][4][5] based in Bengal for much of the 14th, 15th and 16th centuries. It was the dominant power of the Ganges–Brahmaputra Delta, with a network of mint towns spread across the region. The Bengal Sultanate had a circle of vassal states, including Odisha in the southwest, Arakan in the southeast,[6] and Tripura in the east.[7] In the early 16th-century, the Bengal Sultanate reached the peak of its territorial growth with control over Kamrup and Kamata in the northeast and Jaunpur and Bihar in the west. It was reputed as a thriving trading nation and one of Asia's strongest states. Its decline began with an interregnum by the Suri Empire, followed by Mughal conquest and disintegration into petty kingdoms.

d) the constitution rights of native americans and their right to self-government on reservations