Final answer:
The Directive Principles direct the state to separate the Judiciary from b. the Executive, pursuant to the principle of separation of powers, to maintain an independent judiciary and prevent overreach of executive power.
Step-by-step explanation:
The Directive Principles refer to the guidelines or principles given to the federal institutes governing the state of India, which though not justiciable, are fundamental in the governance of the country, meant to be kept in consideration while framing laws and policies. The concept of separation of powers, initially theorized by French philosopher Baron de Montesquieu and later embodied in the Constitution of the United States, implies that the three branches of government (legislative, executive, and judicial) should be distinct and independent. Based on these principles, the Directives ask the state to separate the Judiciary from the Executive. This is to ensure an independent judiciary, which is crucial for maintaining checks and balances within a democratic government structure, and to avoid any overreach of power by the executive branch.