-The Figure Above Shows the U

-The figure above shows the U.S.supply of labor curve.An increase in the income tax rate leads to a

A) rightward shift of the supply of labor curve.
B) movement upward along the supply of labor curve from a point such as C to a point such as B.
C) movement downward along the supply of labor curve from a point such as A to a point such as B.
D) leftward shift of the supply of labor curve.
E) None of the above answers is correct because there is no change in the supply of labor curve.