Recall Application 3, "The Links Between Self- Reported Happiness and GDP

Recall Application 3, "The Links Between Self- Reported Happiness and GDP," to answer the following questions:
-According to the Application 3, self- reported levels of happiness among individuals in the U.S. have

A) decreased with increasing per capita incomes over the past 30 years.
B) tended to decrease incomes increased at any point in time.
C) increased with increasing per capita incomes over the past 30 years.
D) been higher among African Americans than among whites.