​Consider the following statements in respect of the Directive Principles of State Policy:

1. To secure opportunities for the healthy development of children.

2. To promote equal justice and provide free legal aid to the poor.

3. To minimize inequalities in income, status, facilities, and opportunities.

4. To protect and improve the environment and to safeguard forests and wildlife.

Which of the above-given provisions was/were not added by the 42nd Constitutional Amendment Act, 1976?