The correct answer is: B) Red and black soils
Red and black soils are the most common type of soil in the Deccan Plateau region of Karnataka. They are formed from the weathering of basalt rocks and are rich in iron and aluminum oxides. These soils are well-drained and have good fertility, making them ideal for agriculture.
Laterite soils are formed in tropical and subtropical regions with high rainfall and temperatures. They are rich in iron and aluminum oxides, but they are also low in nutrients and organic matter. Laterite soils are not well-drained and can be acidic.
Alluvial soils are formed from the deposition of sediments by rivers. They are rich in nutrients and organic matter, and they are well-drained. Alluvial soils are ideal for agriculture.
Sandy soils are composed of mostly sand particles. They are well-drained, but they are also low in nutrients and organic matter. Sandy soils are not ideal for agriculture, but they can be used for growing certain crops, such as sugarcane.