Explanation:

- In November 2020, the Jharkhand State Assembly passed a resolution on the Sarna Code.

- The Sarna Code is meant to recognize the distinct religious practices of tribal communities.

- This code acknowledges the unique faith systems of indigenous people in official records.

- Chhattisgarh has a significant tribal population but did not initiate the Sarna Code resolution in 2020.

- Madhya Pradesh also has tribal communities but wasn't involved in this particular resolution during that time.

- Bihar, while having diverse communities, did not focus on the Sarna Code in its assembly sessions.

The correct answer is: Option 3 - Jharkhand