Which of the Following Would Be Most Likely to Shift

Multiple Choice

Which of the following would be most likely to shift the long-run aggregate supply curve (LRAS) to the right?

A) favorable weather conditions that increased the size of this year's grain harvest
B) an increase in resource prices relative to product prices
C) an increase in labor productivity as the result of improved computer technology and expansion of the Internet
D) an increase in the cost of security as the result of terrorist activities