When a firm’s total revenue is at the maximum, marginal revenue is? by Sunday | Aug 5 | Economics WAEC | 0 comments A. at the maximum B. negative C. zero D. positive E. constant Correct Answer: Option C – zero Users Also Read These:At the point where marginal revenue of a monopolist…The elasticity of demand for a firm's product is 2.…One relationship between marginal utility and total…A market structure where profit is maximized when…At the maximum point of the total product curve of a…