Gunpowder consists of a mixture of A. Sand and TNT B. TNT and charcoal C. Nitre, sulphur and charcoal D. Sulphur, sand and charcoal

The correct answer is C. Nitre, sulphur and charcoal.

Gunpowder is a black or brownish-gray powder consisting of charcoal, sulfur, and potassium nitrate. It is used as a propellant in firearms and as an explosive in mining and construction.

Charcoal is a black, porous form of carbon that is produced by heating wood or other organic materials in the absence of air. It is used as a fuel, as a reducing agent in metallurgy, and as a filler in rubber and plastics.

Sulfur is a yellow, non-metallic element that is found in nature as the mineral sulfur. It is used in the production of sulfuric acid, gunpowder, and matches.

Potassium nitrate, also known as saltpeter, is a white, crystalline salt that is found in nature as the mineral niter. It is used in the production of gunpowder, fertilizer, and explosives.

Sand is a granular material composed of finely divided rock and mineral particles.

TNT, or trinitrotoluene, is a yellow, crystalline explosive that is used in military and commercial applications.

The other options are incorrect because they do not list all three of the essential ingredients of gunpowder.