Which of the Following Is NOT Correct About a Single-Price

Multiple Choice

Which of the following is NOT correct about a single-price monopoly?

A) Maximum profit is found where demand is the most inelastic.
B) Marginal revenue is negative when demand is inelastic.
C) Marginal revenue is positive when demand is elastic.
D) To sell more output, the firm must lower its price.
E) To maximize its profit, the firm produces so that marginal revenue equals marginal cost.