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…The average curve and the marginal curve are…When the total product starts falling; then the…The diagram shows the total utility curve. At the…A firm with marginal cost equals to its marginal…