Explanation:

- The Gobar-Dhan Yojna was introduced to promote the management of cattle dung and agricultural waste.

- Statement 1: The scheme does contribute to making villages open defecation free, as it supports better sanitation practices.

- Statement 2: The scheme focuses on converting waste, including dung and agricultural residues, into useful products such as compost, biogas, and bio-CNG.

- Option 1: Only highlights Statement 1, which isn't entirely comprehensive.

- Option 2: Highlights Statement 2, which is accurate.

- Option 3: Both Statements 1 and 2 are correct.

The correct option is:

Option 3: Both 1 and 2