Can someone please help me in finding out the accurate answer from the following question.
For a monopolist in a product market, the value of marginal product of the labor: (i) Equivalents the marginal revenue product of the labor at all inputs. (ii) Is less than the marginal revenue product of the labor at all inputs. (iii) Surpasses the marginal revenue product at all the inputs of labor. (iv) Consists of no systematic relationship to the marginal revenue product.