The correct answer is option 1: Amnesty International is a human rights group. Amnesty International is a global, non-governmental organization that works to protect and promote human rights around the world. They investigate and expose human rights abuses, support individuals who are marginalized or oppressed, and advocate for policy changes to ensure human rights are respected and upheld.

Option 2, "UN agency to fight global terrorism," is incorrect. While the United Nations does have agencies and initiatives focused on combating terrorism, Amnesty International is not one of them. Amnesty International`s primary focus is on human rights, rather than counter-terrorism efforts.

Option 3, "refugee camp in Croatia," is also incorrect. Amnesty International is not a refugee camp but rather an organization that advocates for the rights of refugees and works to ensure their safety and well-being.

Option 4, "wing of the World Bank," is also incorrect. Amnesty International is an independent organization and not affiliated with the World Bank or any other financial institution.

In summary, Amnesty International is a global human rights group that works to protect and promote human rights worldwide.