The correct answer is A. Purbi Singhbhum.
Copper-ore is largely found in Jharkhand in Purbi Singhbhum district. The district is home to the world’s largest copper deposit, the Rajmahal copper belt. The belt is located in the eastern part of the district, and it is estimated to contain over 1 billion tonnes of copper ore.
The copper ore in Purbi Singhbhum is of high quality, and it is used to produce copper cathodes, which are used in a variety of products, including electrical wiring, electronics, and construction materials.
The copper mining industry in Purbi Singhbhum is a major contributor to the district’s economy. The industry employs thousands of people, and it generates millions of dollars in revenue each year.
The copper mining industry in Purbi Singhbhum has a long history. The first copper mines in the district were established in the 19th century, and the industry has continued to grow ever since.
The copper mining industry in Purbi Singhbhum is facing a number of challenges, including environmental concerns and the depletion of copper ore reserves. However, the industry is still a major contributor to the district’s economy, and it is likely to continue to play an important role in the future.
The other options are incorrect because they are not districts in Jharkhand where copper-ore is largely found.