The correct answer is: a) Bell metal items.
Hajo is a town in Assam, India, which is famous for its production of bell metal items. Bell metal is an alloy of copper and tin, and it is used to make a variety of objects, including utensils, jewelry, and religious items. The bell metal items produced in Hajo are known for their high quality and craftsmanship.
Option b) Pottery is incorrect because Hajo is not known for its pottery. Pottery is made from clay, and it is used to make a variety of objects, including pots, dishes, and figurines. However, pottery is not a major industry in Hajo.
Option c) Cane and bamboo crafts is incorrect because Hajo is not known for its cane and bamboo crafts. Cane and bamboo are used to make a variety of objects, including furniture, baskets, and mats. However, cane and bamboo crafts are not a major industry in Hajo.
Option d) Wood carvings is incorrect because Hajo is not known for its wood carvings. Wood carvings are made from wood, and they are used to make a variety of objects, including furniture, sculptures, and religious items. However, wood carvings are not a major industry in Hajo.