The currency of the proposed European Monetary Union would be

a) Dollar

b) Euro

c) Guilder

d) Mark

12 nations of European Union accepted a common currency Euro which came into transaction since January 1, 1999. The real trading to Euro started on January 4, 1999. The twelve nations who adopted Euro are Germany, France, Belgium, Netherlands, Luxemberg, Ireland, Italy, Portugal, Spain, Finland, Austria and Greece.