Which of the Following Statements Is True

Multiple Choice

Which of the following statements is true?

A) The long-run aggregate supply curve can never shift to the left.
B) The long-run aggregate supply curve can never shift to the right.
C) The long-run aggregate supply curve can shift to both the left and the right.
D) The long-run aggregate supply curve always stays in the same location because potential real GDP cannot change.
E) New technologies affect only the short-run aggregate supply curve, not the long-run aggregate supply curve.