Country A has a population of 2000, of whom 400 work 7 hours a day to make 128,000 cups of coffee. Country Z has a population of 2,200, of whom 880 work 5 hours a day to make 384,000 cups of coffee. Coffee is the only final good in each country. a. Country A has lower productivity and lower real GDP per person than country Z. b. Country A has lower productivity but higher real GDP per person than country Z. c. Country A has higher productivity but lower real GDP per person than country Z. d. Country A has higher productivity and higher real GDP per person than country Z