In a graph showing a shift in supply, what does S1 and S2 typically represent?

• A. S1 and S2 both represent the new supply curve.
• B. S1 is the new supply curve, S2 is the original supply curve.
• C. S1 is the original supply curve, S2 is the new supply curve.
• D. S1 and S2 both represent the original supply curve.

Answer: (C)