Consider the following statements.
a) The Soil found in maximum part of Rajasthan is Aridisols and Entisols.
b) Red soil is present in Udaipur and Dungarpur.
c) Usara soil is the soil which is located nearby mountain ranges.
d) Hadoti Region has Black soil.
Which of the statement/statements given above is/are correct?
1. a and b only
2. c and d only
3. a, b and d only
4. a and d only