Sixteen articles of the Constitution of India deal with the Directive Principles of State Policy. Which of the following pairs is not correctly matched?

• A. To secure just and humane conditions of work and maternity relief: Article 42
• B. To organize village Panchayats as units of self-government: Article 40
• C. To secure the improvement of public health and the prohibition of intoxication drinks and of drugs which are injurious to health: Article 47
• D. To protect all monuments of historic interest and national importance: Article 50