If the population is growing at 1%, then according to the Solow model, output per person ____, and aggregate output _____ a. settles down to a steady state; is constant. b. never settles down to a steady state; is growing at 1%. c. None of these answers is correct. d. is growing at 1%; is also growing at 1%. e. settles down to a steady state; is growing at 1%.