The correct option is 2 and 3 only because Part IV of the Constitution of India contains the Directive Principles of State Policy, which are guidelines for the State to achieve social and economic justice. These principles are not enforceable by courts as they are fundamental in the governance of the country but are not legally binding, meaning courts cannot compel the State to implement them. However, they serve as a vital framework to influence and shape the law-making process, thereby guiding the State's actions towards achieving the goals of justice, liberty, equality, and fraternity as envisioned in the Constitution.