Figure: the Value of the Marginal Product Curve

Multiple Choice

Figure: The Value of the Marginal Product Curve
(Figure: The Value of the Marginal Product Curve) In the figure The Value of the Marginal Product Curve, if the price of the good increases and everything else stays the same, then the profit- maximizing quantity of labor:

A) will increase.
B) will decrease.
C) will stay the same.
D) cannot be determined.