The correct answer is: C. Dharwar rock system.
The Dharwar rock system is a Precambrian rock system that is found in the Indian subcontinent. It is known for its rich deposits of metallic minerals, including iron, copper, lead, and zinc. The Dharwar rock system is also a major source of gold and diamonds.
The Vindhyan rock system is a sedimentary rock system that is found in the Indian subcontinent. It is not known for its rich deposits of metallic minerals.
The Carboniferous rock system is a sedimentary rock system that is found in the Northern Hemisphere. It is not known for its rich deposits of metallic minerals.
The Archean rock system is a Precambrian rock system that is found on all continents. It is not known for its rich deposits of metallic minerals.
The Dharwar rock system is a major economic resource for India. The metallic minerals that are found in the Dharwar rock system are used in a variety of industries, including the iron and steel industry, the copper industry, the lead and zinc industry, and the gold and diamond industry. The Dharwar rock system is also a major source of construction materials, such as granite and basalt.