Exp) Option b is the correct answer.

Article 47 of The Constitution of India is one of the Directive Principles which directs the State to raise the level of nutrition and the standard of living and to improve public health as among its primary duties and, in particular, the State shall endeavor to bring about prohibition of intoxicating drinks and drugs which are injurious to health.

National Food Security Act, 2013: As passed by the Parliament, Government has notified the National Food Security Act, 2013 with the objective to provide for food and nutritional security in human life cycle approach, by ensuring access to adequate quantity of quality food at affordable prices to people to live a life with dignity. Thus, this act implements the directive mentioned in Article 47 under Part IV of Indian Constitution.

Option a is incorrect: Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA), 2005 fulfils the Article 41 of the Indian Constitution. Which aims to secure work, education and public assistance rights for persons in cases of unemployment, old age, sickness, disablement, and undeserved want.

Option c is incorrect: Part IV of Indian Constitution, Article 45 and Article 39 (f ) of DPSP, had a provision for state funded as well as equitable and accessible education.

Option d is incorrect: Article 24 of Fundamental Right provides for Prohibition of employment of children in factories, etc. Child Labour (Prohibition and Regulation) Act, 1986 reaffirms this right under Indian Constitution.