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:A firm with marginal cost equals to its marginal…The relationship between the marginal revenue (MR)…When the total product starts falling; then the…A market structure where profit is maximized when…When the marginal product is negative, the total…