Answer: C
Explanation: Eight major soil groups available in India are: Alluvial Soils, Black Soils, Red Soils, Laterite Soils, Forest and Mountain Soils, Arid and Desert Soils, Saline and Alkaline Soils, Peaty and organic Soils. Alluvial soils constitute the largest soil group in India, constituting 80% of the total land surface. An alluvial soil in India is of three types: Sandy soil, Clayey soil and Loamy soil.