content area top Part 1 In growth theory, the standard of living is measured using the growth rate of Question content area bottom Part 1 A. real GDP per capita. B. unemployment. C. population. D. real GDP. E. employment.Question content area top Part 1 If it took 20 years for real GDP to double, what was the average growth rate of real GDP? Question content area bottom Part 1 A. 5 percent B. 3.0 percent C. 4.5 percent D. 3.5 percent E. 4 percent