Consider the following statements:
A. Aravalli restricts the eastward expansion of the desert.
B. All the rivers of Rajasthan have their origin from Aravalli.
C. Distributional pattern of rainfall in Rajasthan is not affected by Aravalli.
D. Aravalli region is rich in metallic minerals.
Select the correct answer using the code given below:
1. A, B and C are correct.
2. B, C and D are correct.
3. Only C and D are correct.
4. Only A and D are correct.