Which of the following is an advantage of to having a common currency in the European Union?

One advantage of having a common currency in the European Union is increased price transparency and easier cross-border transactions. With a common currency, it becomes simpler for businesses and consumers to compare prices and make purchases across different countries within the European Union. This fosters competition and can lead to lower prices for goods and services. Additionally, it eliminates the need for individuals and businesses to exchange currencies when conducting trade or traveling within the EU, reducing transaction costs and making cross-border transactions more efficient.