The correct answer is A. 1.
Jharkhand is the largest producer of coal in India, accounting for 28.4% of the country’s total production in 2020-21. The state has 80% of India’s coal reserves, and its coal production has been increasing steadily in recent years. The main coal-producing districts in Jharkhand are Dhanbad, Bokaro, and Ramgarh.
The other options are incorrect. Option B is incorrect because Chhattisgarh is the second largest producer of coal in India, accounting for 19.6% of the country’s total production in 2020-21. Option C is incorrect because West Bengal is the third largest producer of coal in India, accounting for 14.8% of the country’s total production in 2020-21. Option D is incorrect because Odisha is the fourth largest producer of coal in India, accounting for 12.1% of the country’s total production in 2020-21.