The correct answer is option 4, Article 39, mentioned in the Constitution of India, which deals with the establishment of a Welfare State in India. Article 39 specifically outlines certain principles of social and economic justice that the state should strive to achieve. These principles include ensuring equal distribution of resources, preventing concentration of wealth, providing opportunities for all citizens to have a decent standard of living, and promoting the welfare of the weaker sections of society, such as children, women, and the economically disadvantaged. It also emphasizes the importance of protecting workers` rights and ensuring that there is no exploitation in the workplace. The inclusion of Article 39 in the Constitution reflects the commitment of the Indian government to social and economic welfare and the overall well-being of its citizens.