The correct answer is: A) Fertile alluvial soils.
Alluvial soils are formed by the deposition of sediments from rivers and streams. They are typically rich in nutrients and organic matter, making them ideal for agriculture. The Chambal region of Madhya Pradesh is located in the Indo-Gangetic Plain, which is one of the most fertile regions in the world. The region is home to a number of major rivers, including the Chambal River, which provides a source of water for irrigation and drinking. The Chambal region is also home to a number of important agricultural crops, including rice, wheat, and sugarcane.
Sandy soils are formed from the weathering of sandstone and other igneous rocks. They are typically low in nutrients and organic matter, making them less suitable for agriculture. Ravine soils are formed in areas where there is a lot of erosion. They are typically shallow and have poor drainage, making them difficult to cultivate. Laterite soils are formed in tropical and subtropical regions. They are typically rich in iron and aluminum oxides, making them hard and infertile.