In terms of productivity, what does it mean when the Real GDP per Worker graph has a steep positive slope? And what does it mean when the graph has a relatively flat slope?
A、There is a decrease in the productivity per worker; there is no change in the productivity per worker.
B、There is an increase in the productivity per worker; there is no change in the productivity per worker.
C、There is an increase in the productivity per worker; there is a decrease in the productivity per worker.
D、There is no change in the productivity per worker; there is an increase in the productivity per worker.