Which of the Following Best Describes the Concept of Purchasing

Which of the following best describes the concept of purchasing power parity (PPP) ?

A) In emerging markets, the ability to buy goods and services depends on the influx of FDI from international MNEs.
B) The fluctuation in exchange rates disrupts international trade because the value of goods and services is inconsistent.
C) In the future, a world currency will create equality in the global marketplace and eliminate disparity.
D) Eventually, the exchange rate of two currencies will be equalized and the same goods will have the same price in two countries.