Correct Option: D

Powers and duties of the Attorney General of India is given in Article 76 of the Indian Constitution which mentions that in the performance of his duties the Attorney-General shall have right of audience in all courts in the territory of India. The Attorney General appears on behalf of Government of India in all cases (including suits, appeals and other proceedings) in the Supreme Court in which Government of India is concerned. He/she also represents the Government of India in any reference made by the President to the Supreme Court under Article 143 of the Constitution.