One year ago, the nominal exchange rate for USD/EUR was 1.300. Since then, the real exchange rate has increased by 3%. This most likely implies that:
A. the nominal exchange rate is less than USD/EUR 1.235
B. the purchasing power of the euro has increased approximately 3% in terms of U.S goods.
C. inflation in the euro zone was approximately 3% higher than inflation in the United States.
这是经济学notes currency exchange rates 第一题
问为什么B正确? 没想明白啊。求大神解释。多谢


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