The correct answer is: B. limestone and dolomite
Limestone and dolomite are the major minerals found in Uttar Pradesh. Limestone is a sedimentary rock composed mainly of calcium carbonate. It is used in the construction industry, as a flux in steelmaking, and in the manufacture of cement. Dolomite is a sedimentary rock composed of calcium magnesium carbonate. It is used in the construction industry, as a flux in steelmaking, and in the manufacture of cement.
Copper and graphite are also found in Uttar Pradesh, but they are not as abundant as limestone and dolomite. Copper is a metal that is used in electrical wiring, plumbing, and construction. Graphite is a form of carbon that is used in pencils, lubricants, and batteries.
Rock phosphate is a mineral that is used in fertilizer. It is not found in large quantities in Uttar Pradesh.
Therefore, the correct answer is: B. limestone and dolomite