Ecuador's GDP Per Capita in 2017, Based on Market Exchange

Multiple Choice

Ecuador's GDP per capita in 2017, based on market exchange rates, was $5,600. In that same year, Ecuador's GDP per capita based on purchasing power parity was $11,100. The difference between these two measures of GDP per capita is most likely explained by:

A) Ecuador's dual economy.
B) differences in relative prices between Ecuador and other countries.
C) Ecuador's limited capital account convertibility.
D) credentialism.