Explanation:

- The Tenth Schedule of the Indian Constitution addresses the disqualification of elected members on the ground of defection.

- Often known as the "Anti-Defection Law," the Tenth Schedule was added by the 52nd Amendment Act in 1985.

- It provides grounds on which a member can be disqualified, such as voluntarily giving up membership of the party or defying party directives.

- The Ninth Schedule contains laws that are beyond the scope of judicial review; it was initially created to protect laws related to land reforms.

- The Eleventh Schedule relates to the powers and responsibilities of Panchayats.

- The Twelfth Schedule lists the powers and responsibilities of Municipalities.

Correct Answer: Option 4 - Tenth Schedule