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In the production function (table), since at L = 0, the total output is 0, we deduce that at L = 0, A. the marginal product must be 1. B. the marginal product is 0. C. the marginal product is -1. D. none of the above.In the production function (table) of the classical model, it is assumed that as the level of labor, L, increases, the (corresponding) value of the marginal product: A. stays the same. B. increases. C. decreases. D. none of the above.In the classical model, the total (real) income of the economy is: A. a fixed number. B. a variable that depends on the real interest rate. C. a variable that depends on the level of government expenditure. D. none of the above