Indira Sawhney's judgment is a benchmark judgment on the issue of reservation. Which among the following statements are true?
1. Reservations for backward classes.
2. Identification of backward classes through Hindu Caste System.
3. Identification of backward classes through occupation.
4. Imposition of creamy layer.

A. 1 and 2

B. 1, 2 and 3

C. All of the above

D. None of the above

Answer: Option C