The correct answer is: A. 8th Schedule
The 8th Schedule of the Constitution of India lists 22 languages that are recognized as official languages of the Union. The demand for including “Chhattisgarhi Bhasha” in the 8th Schedule was raised in Rajya Sabha on 23rd August, 2018.
The 9th Schedule of the Constitution lists certain laws that are not subject to judicial review. The 10th Schedule lists the powers, duties, privileges and immunities of Parliament and the State Legislatures. The 11th Schedule lists the powers and functions of Panchayats.
The 8th Schedule is the most relevant schedule for the question as it lists the official languages of the Union. The demand for including “Chhattisgarhi Bhasha” in the 8th Schedule was raised in Rajya Sabha on 23rd August, 2018.