- 83 - E.2.a General considerations on the right to equality before the law, the prohibition of discrimination, and the special protection for children Cf. Case of the "Five Pensioners" v. Peru. Merits, reparations and costs. Judgment of February 28, 2003. Series C No. 98, para. 155, and Case of Acosta et al. v. Nicaragua. Preliminary objections, merits, reparations and costs. Judgment of March 25, 2017. Series C No. 334, para. 30. 445 Cf. Case of Atala Riffo and daughters v. Chile, supra, para. 81, and Case of Duque v. Colombia. Preliminary objections, merits, reparations and costs. Judgment of February 26, 2016. Series C No. 310, para. 90. 446 Cf. Proposed Amendments to the Naturalization Provisions of the Constitution of Costa Rica, Advisory Opinion OC4/84, January 19, 1984. Series A No. 4, para. 55, and Case of I.V. v. Bolivia. Preliminary objections, merits, reparations and costs. Judgment of November 30, 2016. Series C No. 329, para. 238. 447 Cf. Juridical Condition and Rights of Undocumented Migrants, Advisory Opinion OC-18/03, September 17, 2003. Series A No. 18, para. 101, and Case of Gutiérrez Hernández et al. v. Guatemala. Preliminary objections, merits, reparations and costs. Judgment of August 24, 2017. Series C No. 339, para. 150. 448 Cf. Advisory Opinion OC-18/03, supra, para. 103, and Case of Gutiérrez Hernández et al. v. Guatemala, supra, para. 150. 449