Assertion (A) Most of the soils of Rajasthan are alluvial and alluvial. Reason (b) It is formed by the processes of erosion, transportation and deposition over a long period of time. Which of the following is correct with respect to both the above statements?

• A. both a and b are correct
• B. both a and b are wrong
• C. A is right B is wrong
• D. A is wrong B is right