Consider the neoclassical theory of distribution. For the economy of Lower Volta, the marginal product of labor (MPL) is given by MPL=400 - 0.2L where L is aggregate employment. The aggregate quantity of labor supplied is 500 + 10(1-t)wwhere t is the income tax rate and w is the real wage. Assume that the income tax rate (t) is 50%. What is real wage (w) in the equilibrium?

a. 150

b.200

c.250

d.300