Lumberne Is a Continent Comprising 18 Countries

Multiple Choice

Lumberne is a continent comprising 18 countries.Currently,Lumberne is a free trade area and an economic union including all 18 countries as members of free trade.Although each country is politically independent,governments of at least 12 countries are negotiating to form a common government.If Lumberne comes to be led by a single government,it would be a _____.

A) monetary union
B) political union
C) customs union
D) trade union