Which of the following Directives is/are outside the Part IV of the Indian Constitution?
1. Provision of adequate facilities for instruction in the mother-tongue at the primary stage of education.
2. Protection and improvement of the environment
3. Promotion and development of Hindi language
4. Distribution of material resources of the community in an equitable manner.
5. Consideration of the claims of the members of the Scheduled Tribes in the making of appointments to public services.
Select the correct answer using the codes given below: