The correct answer to this open question is the following.
Although there are no options attached we can say the following.
What has been the greatest advantage of creating groups like the EEC, EU, and NAFTA?
The greatest advantage of creating groups like the EEC, EU, and NAFTA is that countries can form trade regions or trade "blocks" that benefit their economic interests. These trade agreements allow their members to freely trade with no or minimum tax barriers, benefiting their exportations and importations rate.
Let's put the example of NAFTA.
On December 17, 1992, Presidents of Mexico, the United States, and Canada signed NAFTA. They were Carlos Salinas, George H. W. Bush, and Brian Mulroney. This would be the largest free trade area in the world. The entering President, Bill Clinton, supported NAFTA principles but wanted the addition of some clauses on environment protection and better labor agreements. According to President Clinton, a result of the North America Free Agreement (NAFTA) would be increased jobs and lower prices.
NAFTA has been recently renegotiated by the three countries and the new agreement is called USMCA, United States, Mexico, and Canada Agreement.
West Germany formally joined NATO on May 5, 1955, and the Warsaw Pact was signed less than two weeks later, on May 14. Joining the USSR in the alliance were Albania, Bulgaria, Czechoslovakia, the German Democratic Republic (East Germany), Hungary, Poland and Romania.
<span>Triple Entente
consisted of Britain, France and Russia
</span>
tipple alliance consisted of Germany, Austria Hungary, and Italy which betrayed them early in the battle. Italy main issue was its enmity with Austria Hungary empire.
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The Unites Farm workers favored <span>C.) organizing consumer boycotts in effort </span>to win labor concessions from large agricultural businesses.