Mineral Oil (Petroleum) is rarely found in plateaus. Petroleum requires sedimentary basins (like river deltas or shallow sea beds) where organic matter was buried and transformed. Plateaus are typically composed of ancient, hard crystalline or volcanic rocks (like the Deccan or African plateaus), which are rich in metallic minerals like iron and manganese but lack the conditions for oil formation. ANSWER: (C) Mineral Oil (Petroleum)