The correct answer is: a) Black unglazed finish.
Manipuri pottery is characterized by its black unglazed finish. It is made from a mixture of clay, sand, and water, and is fired in a kiln at a high temperature. The resulting pottery is strong and durable, and has a distinctive black finish. Manipuri pottery is often used for cooking and storing food, and is also used for decorative purposes.
Option b) is incorrect because Manipuri pottery is not typically glazed. Option c) is incorrect because Manipuri pottery is not typically decorated with delicate sculpting. Option d) is incorrect because Manipuri pottery is not typically made in large utilitarian forms.