Please help with multiple Qs

Which of the following is a reason why real GDP per capita is not a good measure of standards of living? Select one: A. It doesn't take account of population size O B. GDP includes imported goods O C. It ignores externalities O D. It ignores inflation The relationship between investment as a proportion of national income (i) and the potential rate of economic growth (gp) is given by the formula: Select one: A. gp = MEC/i O B. gp = MEC-i O C. gp = i-MEC O D. gp = ixMEC