Explanation:

- Article 338: This Article establishes the National Commission for Scheduled Castes. It provides for the constitution of a commission to investigate and monitor all matters relating to the safeguards provided for the Scheduled Castes under the Constitution.

- Correct Answer: Option 2, Article 338

- Article 336: This Article deals with special provision for Anglo-Indian community in railways, customs services, etc., during the first ten years from the commencement of the Constitution.

- Article 333: This Article pertains to the representation of the Anglo-Indian community in the House of the People and Legislative Assemblies of the States by nominating representatives.

- Article 335: This Article states that the claims of the Scheduled Castes and Scheduled Tribes shall be taken into consideration, consistently with the maintenance of efficiency of administration, in the appointments to services and posts in connection with the affairs of the Union or of a State.