Using gdp per capita in 2016 (measured in u. s. dollars, corrected for differences across countries in the cost of living), identify which one of the following statements is true: a. western europe, australia, canada, japan, new zealand, and the united states are high-income countries. b. most of the countries of africa, asia, and latin america are high-income countries. c. east asian countries such as singapore, south korea, and taiwan, are very low income countries. d. all of the above are true.