Which was an effect of the establishment of the European Union?

"The European Unions was begun as a way to eliminate restrictions on trade among European countries. One of the main purposes of the European Union, or EU, is to make trade within Europe as easy and inexpensive as possible through a common market. Member countries can trade freely with on another without export limits, trade barriers, or taxes owed at country borders. Citizens can also move freely among countries to work and study."

(1 point)
Responses

Member countries trade freely without trade barriers.
Member countries trade freely without trade barriers.

National borders have been erased.
National borders have been erased.

Member states have combined armed forces.
Member states have combined armed forces.

Member states allow the European Union government to make all economic decisions.

Member countries trade freely without trade barriers.