Amnesty International works for

Amnesty International is a non governmental organization dedicated to the protection of human rights worldwide. It campaigns against torture unlawful detention political repression and capital punishment. Founded in 1961 Amnesty International has millions of members across the globe who raise awareness and pressure governments to respect international laws. It conducts investigations publishes reports and organizes petitions to protect vulnerable people. The group has won the Nobel Peace Prize for its efforts. Its independence and global reach make it one of the most respected human rights organizations. Therefore the correct answer is option D Protection of human rights.