Explanation:

- Option 1: Article 19

Article 19 guarantees certain freedoms like speech, assembly, and movement. It does not specifically address discrimination.

- Option 2: Article 23

Article 23 prohibits human trafficking and forced labor. It doesn’t relate to discrimination based on religion, race, etc.

- Option 3: Article 15

Article 15 explicitly prohibits discrimination by the State against any citizen on grounds of religion, race, caste, sex, or place of birth.

- Option 4: Article 14

Article 14 ensures equality before the law. It provides for equal protection of laws but isn’t specifically focused on the prohibition of discrimination like Article 15.