Use the information below to answer the following questions: (1) the rate of depreciation is 12% per year, (2) the population growth rate is 2% per year, and (3) the growth rate of technology is 3% per year. Refer to the information above. Which of the following represents the level of investment needed to maintain constant capital per effective worker ( K/ AN) in this economy? Select one: O a. 0.05 K O b. 0.03 K O C. 0.12 K O d. 0.17 K O e. 0.02 K One explanation for the lower natural rate of unemployment in Japan than in Australia is that: Select one: O a. the average worker lives with several family members in Japan. O b. the labour force is defined differently in Japan. O c. unemployment is defined differently in Japan. O d. the average worker is much younger in Japan. O e. the average worker switches jobs less often in Japan. Analysis of the Australian experience in reducing the inflation rate in the late 1980s suggests which of the following? Select one: O a. Inflation can be reduced without a recession. O b. Credibility plays no role in the macroeconomic effects of a disinflation policy. O c. The sacrifice ratio showed decreasing gains over time. O d. All of the above. O e. None of the above