Country X's living standards were compared with country Y's living standards using real GNP per head converted into US dollars. Country X was ranked above country Y. Which factor might have caused this ranking to be incorrect?

1. Country X's living standards were compared with country Y's living standards using real GNP per head converted into US dollars. Country X was ranked above country Y. Which factor might have caused this ranking to be incorrect? A Actual market exchange rates were used rather than purchasing power parity rates. B Government spending on transfer payments was higher in country Y than in country X. C Inflation was higher in country X than in country Y. D The distribution of income was more unequal in country X than in country Y.[1]