The difference between long-run and short-run aggregate supply is O A. long-run AS is determined by the level of technology, but short-run AS is not. O B. short-run AS is determined by the price level, but long-run AS is not. O C. short-run AS is determined by the amount of capital available, but long-run AS is not. O D. long-run AS is determined by the educational level of the workforce, but short-run AS is not