Correct Answer: (a)
Solution:Panna, located in Madhya Pradesh, is famous for its diamond mines. Iron ore deposits of Chhattisgarh are associated with the rocks that are known to contain high-grade iron ores (Hematite). Major iron ore regions are Rajnandgaon, Durg Dantewada, Bastar & Bilaspur, High-grade bauxite ore is found in the plateau region of Sarguja, Durg, Raigarh and Bilaspur districts in Chhattisgarh. Coal deposits are found from Sidhi, Shahdol, Chindwada and Betul districts in Madhya Pradesh.