Karnataka is a leading producer of this precious metal:

The correct answer is: C) Gold

Karnataka is a leading producer of gold in India. The state accounts for about 25% of the country’s gold production. The main gold mines in Karnataka are located in the districts of Bellary, Chitradurga, and Tumkur.

Platinum is a relatively rare metal that is found in small quantities in many parts of the world. India is not a major producer of platinum.

Silver is a relatively common metal that is found in many parts of the world. India is a major producer of silver.

Copper is a relatively common metal that is found in many parts of the world. India is a major producer of copper.

Here are some additional details about gold production in Karnataka:

• The gold mining industry in Karnataka is estimated to be worth over $1 billion.
• The industry employs over 100,000 people.
• The main gold mines in Karnataka are open-pit mines.
• The gold ore is processed at a number of gold refineries in the state.
• The gold produced in Karnataka is exported to a number of countries, including the United States, China, and the United Arab Emirates.