Explanation:

- Option 1: Article 22 (3) deals with protection against arrest and detention. It provides rights related to being informed of the grounds for arrest, the right to consult a lawyer, and the right to be presented before a magistrate. Doesn't relate to education.

- Option 2: Article 21A establishes the Right to Education. It mandates that the government provides free and compulsory education to all children aged 6 to 14. This was added by the 86th Amendment in 2002.

- Option 3: Article 20 (1) offers protection in respect to conviction of offenses. It ensures no one is punished under laws not in effect at the time of the offense. Unrelated to education.

- Option 4: Article 23 addresses the prohibition of human trafficking and forced labor. It does not discuss education rights.

Option 2: Article 21A is the correct answer because it directly mentions the Right to Education.