If Resource Prices Rise and the Average Total Cost of Producing

Multiple Choice

If resource prices rise and the average total cost of producing a product increases as the firms in an industry expand output in response to an increase in demand, the long-run market supply curve for the product will

A) be perfectly elastic (a horizontal line) .
B) be perfectly inelastic (a vertical line) .
C) slope upward to the right.
D) be more inelastic than the short-run supply curve for the product.