Answer:
A. after tax income should increase shifting AD to the right to a higher equilibrium level of output
Step-by-step explanation:
If the government reduces tax, the after tax income would increase and so woold demand. Thus, the aggregate demand curve would shift rightward to a higher equilibrium level of output.
If the government cuts taxes, after tax income should decrease shifting AD to the left to a lower equilibrium level of output
I hope my answer helps you