Coal Is Used as a Source of Energy in Many

Multiple Choice

Coal is used as a source of energy in many manufacturing processes. Assume a long strike by coal miners reduced the supply of coal and increased the price of coal. This would cause

A) the short-run aggregate supply curve to shift to the right.
B) the short-run aggregate supply curve to become flatter.
C) the short-run aggregate supply curve to shift to the left.
D) the short-run aggregate supply curve to become nearly vertical at all levels of output.