Which of the following best describes how the inception of the euro increased international trade?

The euro was rejected by nearly all EU member countries and had little impact on international business.

The inception of the euro decreased exposure to exchange rate risk among EU member countries.

The inception of the euro drastically decreased the money supply, ultimately leading to less production and trade across the EU.

The inception of the euro gave the EU member countries much more control over their individual monetary policy.

Outsourcing business functions to other countries (increase or decreases) international trade.