Given a graph with marginal revenue and marginal cost curves, how would you identify the profit-maximizing quantity?

• A. Find the point where the demand curve intersects the average total cost curve.
• B. Locate the intersection of the marginal revenue and marginal cost curves.
• C. Identify the highest point on the demand curve.
• D. Find the point where the marginal cost curve intersects the average total cost curve.

Answer: (B)