Which of the following is/are correct about the Rann of Kachchh ? 1. It is a flat saline marsh land 2. It is in Rajasthan 3. It is the home of the Indian Wild Ass 4. It is a unique land formation supporting several singular species of fauna (a) 1, 2 and 3 (b) 2, 3 and 4 (c) 1, 3 and 4 (d) 1, 2, 3 and 4