Purchasing Power Parity Is the Theory That, in the Long

Purchasing power parity is the theory that, in the long run, exchange rates should be at a level such that equivalent amounts of any country's currency

A) will equalize nominal interest rates across countries.
B) are valued inversely relative to the size of its GDP.
C) should earn the same real rate of return.
D) allow one to buy the same amount of goods and services.
E) equate wages in different countries.