Suppose that "z", the marginal product of efficiency units of labor, increases in the endogenous model. What effects does this have on the rates of growth and the levels of human capital, consumption, and output
a) Decreases growth rates, increases levels of human capital, consumption, and output
b) Increases growth rates, decreases levels of human capital, consumption, and output
c) Increases growth rates, increases levels of human capital, consumption, and output
d) Decreases growth rates, decreases levels of human capital, consumption, and output