The Figure Given Below Represents Equilibrium in the Labor Market

The figure given below represents equilibrium in the labor market with the demand and supply curves of labor. Figure 28.6 In the figure,
D = MRP implies demand for labor = Marginal Revenue Product
MFC represents Marginal Factor Cost curve
S represents the supply curve of labor
According to Figure 28.6, if the government imposes a minimum wage of $15, what quantity of labor will a competitive firm and a monopsonist, respectively, hire?

A) 50 and 25
B) 50 and 75
C) 75 and 125
D) 125 and 250
E) 50 and 125