The answer is: D
Explanation
The correct option is D: Article 393.
This article states that the Constitution of India may be called by that name. It is the last article of the Constitution and is part of the final chapter titled "Short title, commencement, authoritative text in Hindi and repeals". The other options are incorrect because:
- Article I declares India as a Union of States and specifies the territory of India.
- Article 5 defines the citizenship of India at the commencement of the Constitution.
- Article 390 gives power to the President to remove difficulties in giving effect to the provisions of the Constitution relating to the transition from the Government of India Act, 1935 to the Constitution of India.