At the maximum point of the total product curve of a firm; marginal revenue is? by Sunday | Oct 28 | Economics JAMB | 0 comments A. decreasing B. increasing C. constant D. zero Correct Answer: Option D – zero Users Also Read These:When the Total Product (TP) is at maximum point, the…When the marginal product is negative, the total…The relationship between the marginal revenue (MR)…At the point where marginal revenue of a monopolist…The elasticity of demand for a firm's product is 2.…