An employer gives his employees a $4 increase in their hourly wage. The employees find that even though their wage has gone up, their wage buys less than it did a year ago. This means that a. the workers' real wage rose and their nominal wage fell. b. the workers' real and nominal wages have risen. c. workers' real wage has stayed the same and their nominal wage rose. d. workers' real and nominal wages have fallen. e. workers' real wage fell and and their nominal wage has stayed the same. f. the workers' real wage fell and their nominal wage rose