4. Some factors retard whilst others promote growth.  From the list below identify those factors that promote growth. LO2 a.     Increasing corruption allows government officials to steal people’s homes. b.     A nation introduces patent laws for the first time. c.    A court order shuts down all banks permanently. d.     A poor country extends free public schooling from 8 years to 12 years. e.     A nation adopts a free-trade policy. f.     A formerly communist country adopts free markets.多项选择题