Which of the following are the Liberal-Intellectual Principles under the Directive Principles of State Policy?
1. Securing for all citizens a uniform civil code throughout the country.
2. Promoting cottage industries on an individual or co-operation basis in rural areas.
3. Maintaining just and honorable relations between nations and promoting international peace.
4. Taking steps to secure the participation of workers in the management of industries.
Select the correct answer using the codes given below: