The correct answer is: B. Banka
Bauxite is an aluminium ore that is found in the earth’s crust. It is the main source of aluminium, which is a very important metal used in many industries. Bauxite is found in many parts of the world, but the highest quality bauxite is found in the district of Banka in Bihar, India.
The bauxite in Banka is high quality because it has a high percentage of aluminium oxide. This makes it ideal for use in the production of aluminium. The bauxite in Banka is also relatively easy to mine, which makes it a cost-effective source of aluminium.
The bauxite industry in Banka is a major contributor to the economy of the district. It provides employment for thousands of people and generates significant tax revenue. The bauxite industry is also a major source of foreign exchange for India.
The bauxite industry in Banka has been facing some challenges in recent years. The price of aluminium has been declining, which has made it difficult for the industry to make a profit. The industry has also been facing environmental challenges, such as the pollution of water resources.
Despite these challenges, the bauxite industry in Banka is still a major contributor to the economy of the district. The industry is expected to continue to grow in the future, as the demand for aluminium increases.
The other options are incorrect because they are not districts in Bihar where high quality bauxite is found.