Amnesty International is
Explanation
Amnesty International is a global non-governmental organization (NGO) focused on the protection and promotion of human rights, making option (B) the correct choice. Option (a) is a common distractor, but the United Nations agency specifically responsible for refugees is the UNHCR, whereas Amnesty is independent of any government or inter-governmental body. The core concept tested is the identification of the specific mandates and organizational nature of prominent international institutions and NGOs.