Which of the following legislative measures BEST exemplifies implementation of Directive Principles through statutory framework?

DPSP implementation through legislation: (a) Right to Education Act, 2009: (i) Operationalizes Article 21A (Fundamental Right) and Article 45 (DPSP) by providing statutory framework for free, compulsory education for children aged 6-14, (ii) Key provisions: 25% reservation in private schools, infrastructure norms, teacher qualifications, prohibition of screening, capitation fees, (iii) Impact: Enhanced enrollment, reduced dropout rates; challenges in quality, equity remain, (b) Contrast with other options: (i) First Amendment (1951): Added Ninth Schedule to protect land reform laws from judicial review; relates to property rights, not DPSP implementation per se, (ii) 44th Amendment (1978): Restored judicial review, Fundamental Rights safeguards post-Emergency; not primarily DPSP-focused, (iii) 101st Amendment (2016): Introduced GST; fiscal federalism reform, not DPSP implementation, (c) Other DPSP implementation examples: (i) MGNREGA (2005): Implements Article 41 (right to work) through employment guarantee, (ii) NFSA (2013): Implements Article 47 (nutrition, public health) through food security entitlements, (iii) RTE Act: Exemplifies comprehensive DPSP implementation through rights-based, statutory framework, (d) Applications: (i) Monitoring: Judicial oversight, social audit ensure RTE implementation, accountability, (ii) Federal coordination: Union-State collaboration essential for education policy, resource allocation, (iii) Inclusion: Focus on marginalized groups (girls, SC/ST, disabled) advances Article 46 (SC/ST welfare) alongside Article 45, (e) Illustrates transformative legislation: RTE Act operationalizes DPSP through justiciable framework; balance between legal entitlement, service delivery, quality enhancement essential for realizing constitutional vision of inclusive education.