Since its inception the euro has brought about revolutionary changes in European finance.For example,

Question

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The redenomination of corporate bonds and stocks from 12 different currencies into one common currency, the euro, has led to the emergence of continent-wide capital markets in Europe that are comparable to U.S. markets in depth and liquidity. This is a revolutionary change in European finance.

Answer: C 
 The euro has made the European banking sector much more important as a source of financing for European firms. This is a significant change from the pre-euro era when national banking sectors were more insular and less interconnected.

Since Its Inception the Euro Has Brought About Revolutionary Changes