Explanation:

- Option 1: Articles 14 and 17

- Article 14 guarantees equal protection of the laws.

- Article 17 abolishes untouchability.

- Not relevant to the case.

- Option 2: Articles 19 and 21

- Correct Answer.

- Article 19 discusses the protection of certain rights regarding freedom of speech, assembly, etc.

- Article 21 provides that no person shall be deprived of life or personal liberty except according to procedure established by law.

- The court examined if the Preventive Detention Act violated these rights.

- Option 3: Articles 23 and 25

- Article 23 prohibits traffic in human beings and forced labor.

- Article 25 ensures freedom of conscience and free profession of religion.

- Not relevant to the case.

- Option 4: Articles 23 and 32

- Article 23 again prohibits traffic in human beings and forced labor.

- Article 32 provides the right to constitutional remedies.

- Not relevant to this context.