Which of the following Directive Principles of State Policy come into category of 'liberal principles'? 1. The State shall endeavour to secure a uniform civil code throughout the territory of India. 2. The State shall protect every monument or place or object of artistic or historic interest. 3. The State shall endeavour to secure to all workers a living wage and conditions of work ensuring a decent standard of life. 4. The State shall take steps to separate the judiciary from the executive.

Answer: Option D