Explanation:

- Article 75 (Correct Answer): This article of the Constitution of India specifies that the Prime Minister shall be appointed by the President and that the other Ministers shall be appointed by the President on the advice of the Prime Minister. It outlines the framework for the formation of the Council of Ministers.

- Article 70: This article deals with the discharge of the President's functions in other contingencies, not directly with the appointment of the Prime Minister and other Ministers.

- Article 79: This article pertains to the Constitution of Parliament, stating that it consists of the President and two Houses, the Council of States and the House of the People, rather than ministerial appointments.

- Article 85: Concerns the sessions of Parliament, prorogation, and dissolution, which are unrelated to the appointment of Prime Ministers or ministers.

The correct answer is Option 3: Article 75.