Answer:
economically
politically
socially
Explanation:
The European Union is a block of cooperation, where member countries can benefit economically, politically and as a consequence, socially.
Nations that are part of the EU can trade freely, without customs barriers. This stimulates the exchange, employment, and economy of nations as a whole. Moreover, by acting as a bloc, the EU has greater bargaining power vis-a-vis the world, generating political benefits for members, since everything that is dealt with by the bloc benefits all members. Lastly, the economic and political benefits result in an improvement in the well-being of society by generating jobs, increasing the wealth of nations and adopting protocols on social rights that must be followed by all members.
