Refer to the above table. If gross investment is $34 billion, net exports are zero, and there is a lump-sum tax of $30 billion at all levels of GDP, then the after-tax equilibrium level of GDP will be:

Refer to the diagram. Total utility:

A. increases so long as additional units of Y are purchased.
B. becomes negative at 4 units.
C. increases at a diminishing rate, reaches a maximum, and then declines.
D. is maximized at 2 units.

Starting from long-run equilibrium, a large decrease in government purchases will result in a(n) ________ gap in the short-run and ________ inflation and ________ output in the long-run.

A. expansionary; lower; potential B. expansionary; higher; potential C. recessionary; lower; potential D. recessionary; lower; lower