Which of the following are vertical?

A) Both the long-run Phillips curve and the long-run aggregate supply curve
B) Neither the long-run Phillips curve nor the long-run aggregate supply curve
C) The long-run Phillips curve, but not the long-run aggregate supply curve

Long-Run Phillips Curve

A graph showing that, in the long term, there is no trade-off between inflation and unemployment, suggesting the relationship is vertical.

Long-Run Aggregate Supply

The total output of goods and services that an economy can produce when it is using all of its resources efficiently and at full employment.

Vertical

In economics, this term typically refers to a market structure where companies provide different, but related, products or services at various stages of production.