The correct answer is: D. Article 21 of the constitution of India.
Article 21 of the Constitution of India guarantees protection of life and personal liberty. It states that no person shall be deprived of his life or personal liberty except according to procedure established by law. This means that the government cannot take away a person’s life or liberty without following the due process of law.
Article 21 has been interpreted by the Supreme Court of India to include a number of other rights, such as the right to privacy, the right to freedom from torture, and the right to a fair trial. It has also been used to strike down laws that were seen as violating these rights.
Article 21 is one of the most important fundamental rights guaranteed by the Constitution of India. It protects the basic right of every citizen to life and liberty. This right is essential for the maintenance of a just and democratic society.
The other options are incorrect because they do not guarantee the right to life and liberty. Article 12 guarantees equality before the law and prohibits discrimination on grounds of religion, race, caste, sex, place of birth, or any of them. Article 17 prohibits untouchability and its practice in any form. Article 15 prohibits discrimination on grounds of religion, race, caste, sex, place of birth, or any of them.