Refer to the two sources. Source 1

"Yesterday we saw the sight of an old world dying, a new one being born in hope and a spirit of peace. Peoples who for a decade were caught in the cycle of war and frustration chose hope over fear and took a great risk to make the future better.

Today we turn to face the challenge of our own hemisphere, our own country, our own economic fortunes. In a few moments, I will sign three agreements that will complete our negotiations with Mexico and Canada to create a North American Free Trade Agreement. In the coming months I will submit this pact to Congress for approval. It will be a hard fight, and I expect to be there with all of you every step of the way. We will make our case as hard and as well as we can. And though the fight will be difficult, I deeply believe we will win. And I'd like to tell you why. First of all, because NAFTA means jobs, American jobs and good-paying American jobs. If I didn't believe that, I wouldn't support this agreement.”

President Bill Clinton, remarks at the signing ceremony for the supplemental agreements to the North American Free Trade Agreement (NAFTA), September 14, 1993

Source 2

Map of African Continental Free Trade Area (A f C F T A), 2019. A key notes Unsigned, Signed, and Ratified regions. Countries labeled are Benin, Nigeria, and Eritrea. Benin, Nigeria, and Eritrea are Unsigned. Egypt, parts of northwest Africa, South Africa, and parts of east Africa on the coast are Ratified. North Africa, countries in the middle of Africa, and the Congo are Signed.

The economic coalitions described in the sources are most similar to which of the following historical entities?

the United Nations (UN)
the North Atlantic Treaty Organization (NATO)
the World Trade Organization (WTO)
the European Union (EU)