Which of the following statements is NOT true regarding the long-run aggregate supply curve (LAS)? O a. The LAS shows the relationship between the price level and long-run potential output when labor and capital are both fully employed. O b. The LAS will shift out only if the economy experiences an improvement in productivity, including developing better technologies or having access to more resources. O. c. The LAS curve slopes upward because firms will produce more in the long-run if the price at which they can sell their output increases. Old. The LAS is a vertical line at the level of potential output. O e. The SAS curve intersects the LAS curve at potential output