Which of the following Directive Principles of State Policy was added to the Constitution at a later date?

Which of the following was not added to the Directive Principles by the 42nd Amendment of the Constitution?

In Part-IV, relating to Directive Principles of State Policy, which of the following Articles was not added by the Forty-second Constitution Amendment Act?

Which of the following is not included in the Directive Principles of State Policy?

Which one of the following is not a Directive Principle of State Policy?

Who among the following described the Directive Principles of State Policy as the novel feature of the Constitution of India?