All of the Following Will Cause the Supply Curve of Good

Multiple Choice

All of the following will cause the supply curve of good A to shift rightward EXCEPT

A) a reduction in the prices of inputs used to produce good A.
B) an increase in the number of firms in the industry producing good A.
C) a decrease in the per-unit tax on good A which producers must pay.
D) an increase in the market price of good A.