Question

which best describes the european union?
an economic policy that places tariffs on goods entering europe
a trade agreement responsible for one of the world’s largest economies
an economic policy that lowers tariffs on goods sent from europe to the united states
a trade agreement that unites all european countries with a single trading goal

Explanation:

The European Union (EU) is a political and economic union of member states, not just a policy. It is not limited to tariffs with the U.S. or all European countries (some European nations are not EU members). The EU’s single market and economic integration make it one of the world’s largest economies, aligning with this description.

Answer:

a trade agreement responsible for one of the world's largest economies