Answer: Political union
Step-by-step explanation:
Economic integration is an agreement among the countries in a region that is aimed to reduce and remove the barriers to the free flow of the factors of production and goods or services.
A political union is a type of union that is formed out of smaller states. A political union is the most advanced form of integration wherby there is a common government and one where the sovereignty of member countries are reduced. It is found within federations where there's a central government and level of autonomy in the regions.