Assume that expectations of productivity are slow to adjust. An increase in productivity growth from 2% to 5% will cause: Select one: an increase in...

a. an increase in the real wage of 5% and an increase in  un.b. an increase in the real wage of 5% and a decrease in  un.c. an increase in the real wage of 2% and a decrease in  un.d. an increase in the real wage of 2% and an increase in  un.e. an increase in the real wage of 3% and a decrease in  un.