The correct answer is: A. Fifth
The Fifth Schedule of the Constitution of India lists the Central Laws that are applicable to the State of Jammu and Kashmir. These laws are applicable in the Union Territory of Jammu and Kashmir and Union Territory of Ladakh as well.
The Sixth Schedule of the Constitution of India lists the special provisions that apply to the tribal areas of Assam, Meghalaya, Tripura, and Mizoram.
The Eighth Schedule of the Constitution of India lists the 22 scheduled languages of India.
The Ninth Schedule of the Constitution of India lists the laws that have been declared to be not unconstitutional by the Supreme Court of India.
The Fifth Schedule is the most relevant option because it lists the Central Laws that are applicable to the State of Jammu and Kashmir, which includes the Union Territory of Jammu and Kashmir and Union Territory of Ladakh.