Option B is correct because the provided text explicitly states that Black soil covers the plateaus of Maharashtra, Saurashtra, Malwa, Madhya Pradesh, and Chhattisgarh. It describes this soil as typical of the Deccan trap (Basalt) region spread over the northwest Deccan plateau. The other options (Uttar Pradesh, Rajasthan, Jharkhand) are not mentioned in the context as primary locations for Black soil.