The correct answer is A) the UN.
Using diplomacy as a way to end conflicts between nations is one of the functions of the UN.
The United Nations has the main goal of maintaining peace in the world. This international organization also strives for protecting human rights, help undeveloped countries to grow, and procure for the health of people in poor nations. The way to resolve conflicts is through diplomacy and never aggression. UN headquarters are located in New York.
The other options of the question were B) NGOs. C) the Chief Negotiator. D) the UN General Assembly.