Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions:
Figure: Supply Shift
-(Figure: Supply Shift) What would cause the supply curve to shift from S₁ to S₂ as shown in the diagram?

A) an increase in taxes on firms' output
B) an increase in the price of inputs used to produce the output
C) a decrease in the number of firms that produce the output
D) a decrease in the wages paid to union workers who produce the output