With reference to India's Desert National Park, which of the following statements are correct? 1. It is spread over two districts. 2. There is no human habitation inside the Park. 3. It is one of the natural habitats of Great Indian Bustard. Select the correct answer using the code given below:

1. Statement 1 is correct. India's Desert National Park is located in the state of Rajasthan and is spread over two districts: Jaisalmer and Barmer. 2. Statement 2 is incorrect. Unlike many other national parks, the Desert National Park encompasses several villages and traditional settlements (Dhanis) within its boundaries. Therefore, there is significant human habitation inside the Park. 3. Statement 3 is correct. The Desert National Park provides a critical refuge and is one of the most important natural habitats for the critically endangered Great Indian Bustard. 4. Therefore, only statements 1 and 3 are correct.