The result that no long-run trade-off between output and inflation exists
A) depends critically on how inflationary expectations are formed as they enter the Phillips curve.
B) can be supported by a Phillips curve model given almost any view of how inflationary expectations are formed.
C) is nonsense because it is most certainly not true in the short run.
D) cannot be true if a short-run trade-off between unemployment and inflation exists.
E) none of the above.

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The Answer of The result that no long-run trade-off between output and inflation exists
A) depends critically on how inflationary expectations are formed as they enter the Phillips curve.
B) can be supported by a Phillips curve model given almost any view of how inflationary expectations are formed.
C) is nonsense because it is most certainly not true in the short run.
D) cannot be true if a short-run trade-off between unemployment and inflation exists.
E) none of the above.

The Result That No Long-Run Trade-Off Between Output and Inflation