The correct answer is: A. 279A
The GST Council is a body constituted by the Government of India under Article 279A of the Constitution of India to make recommendations on the implementation of the Goods and Services Tax (GST) in India. The Council is headed by the Union Finance Minister and has representatives from all the states and union territories.
The GST Council was formed on 15 November 2016 and its first meeting was held on 18 November 2016. The Council has so far held 46 meetings.
The GST Council has played a key role in the implementation of the GST in India. It has made recommendations on a wide range of issues, including the rates of tax, the list of goods and services that are subject to tax, the rules and procedures for filing returns, and the dispute resolution mechanism.
The GST Council has been successful in implementing the GST in India. The GST has been a major reform in the Indian tax system and it has had a positive impact on the Indian economy.
The other options are incorrect because they are not the articles of the Constitution of India that deal with the GST Council.