Which of the following statements with regard to the expansion of the desert in Rajasthan is/are correct?
1. The predominant wind direction in Rajasthan is northeast to southwest, so the tendency for desertification has been more in that direction.
2. The Thar desert is dominantly a monsoon driven sand desert where wind erosion is a major problem during the summer months. While the Aravalli range is a major barrier in the spread of the desert, rampant mining creating cuts in the range is leading to the spread of the desert.
Select the correct answer using the code given below:

Options

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2