Article 10-A of the Constitution deals with —:

Fundamental rights are essential protections guaranteed to citizens by the Constitution, ensuring justice and due process. Article 10-A is a significant addition to the Constitution of Pakistan, introduced through the 18th Amendment. The correct answer is A: Right of fair trial. Article 10-A explicitly states that "For the determination of his civil rights and obligations or in any criminal charge against him a person shall be entitled to a fair trial and due process." This ensures judicial fairness and procedural justice. Distractor B, Right to safeguard against illegal detention, is covered by Article 10, which deals with safeguards as to arrest and detention, including the right to be informed of the grounds of arrest and production before a magistrate. Distractor C is incorrect because Article 10-A specifically addresses fair trial, not illegal detention. Distractor D is incorrect as Article 10-A clearly defines this right.