How does an increase in input prices, like gasoline, affect the short run Phillips curve?

• A. It shifts the Phillips curve to the left, indicating lower inflation and unemployment.
• B. It shifts the Phillips curve to the right, indicating higher inflation and unemployment.
• C. It has no effect on the Phillips curve.
• D. It causes the Phillips curve to become vertical, indicating no trade-off between inflation and unemployment.

Answer: (B)