What term best describes the european union

The phrase that best describes the European Union out of the options provided is the following: a trade agreement responsible for one of the world's largest economies.

Explanation:

Made up of 28 member states, the European Union (EU) is a political and economic agreement of collaboration between countries in Europe. Together, these countries have a combined population of more than 500 million people. The EU has implemented a single internal market and a standardized system of laws for member countries. EU policies were created to allow the free movement of people, goods, money, and services between the EU countries. The euro currency was adopted in 2002 and it is currently used by 19 of the 28 member states.