According to the Austrian theory of the business cycle as described by Roger ' Garrison, what happens to unemployment and. conversely. employment during the boom phase? 0 The natural rate of onemployment decreases as employment expands in all sectors equally. O Unemployment drops below its natural rate as employment expands in the specic sectors that are experiencing malinyestment and oyerconsumption. C3 Unemployment drops below its natural rate as employment expands in all sectors equally. O The effect on the unemployment rate and overall employment levels is ambiguous