a. $50. b. $100. c. $500. d. $600. 9. GDP would include which of the following? ( ) a. Housework b. illegal drug sales c. intermediate sales d. consulting services 10. The CPI will be most influenced by a 10 percent increase in the price of which of the following consumption categories? ( ) a. Housing b. transportation c. medical care d. food and beverages 11. A reasonable measure of the standard of living in a country is ( ) a. real GDP per person. b. real GDP. c. nominal GDP per person. d. nominal GDP. 12. The opportunity cost of growth is ( ) a. a reduction in current investment. b. a reduction in current saving. c. a reduction in current consumption. d. a reduction in taxes