Which one of the following regarding the tenure of the elected members

Which one of the following regarding the tenure of the elected members of the Autonomous District Council is correct?

Five years from the date of election
Five years from the date appointed for the first meeting of the Council after the election
Six years from the date of administration of Oath
Six years from the date of election
This question was previously asked in
UPSC CDS-2 – 2018
The tenure of the elected members of the Autonomous District Council is five years from the date appointed for the first meeting of the Council after the election.
This provision is mentioned in the Sixth Schedule of the Constitution of India, which deals with the administration of Tribal Areas in the states of Assam, Meghalaya, Tripura, and Mizoram.
Paragraph 2(1) of the Sixth Schedule states that each District Council shall consist of not more than thirty members, of whom not more than four persons shall be nominated by the Governor and the rest shall be elected on the basis of adult suffrage. The elected members hold office for a term of five years from the date appointed for the first meeting of the Council after the general elections, unless the Council is sooner dissolved.