Which of the following statements regarding the "Gandhi Sagar Sanctuary" is/are correct?

1. The sanctuary boasts a flora characterized by dry, mixed, and deciduous vegetation alongside flat grasslands.

2. The renowned Chaturbhuj Nala rock shelters are encompassed within the sanctuary.

3. The sanctuary is traversed by the Chambal River, effectively dividing it into two sections.

Select the correct option(s) from the choices below: