19. (3pts) Expectations about future exchange rates are closely connected with A) expectations about the future money prices of countries' products; which, in turn, depend on changes in money supply and demand. B) expectations about the future unemployment rate; which, in turn, depends on changes in labor supply and demand. C) expectations about the future inflation rate; which, in turn, depends on changes in money supply. D) expectations about the future discount rate; which, in turn, depends on central bank's decisions.