8 . Monopolistic Competition 1. Graphical Picture 2. Profit Max 3. Welfare Effects STEP: 1 of 3 Crest is one firm of many in the market for toothpaste, which is in long-run equilibrium. Indicate which of the following graphs accurately reflects Crest's demand curve, marginal-revenue (MR) curve, average-total-cost (ATC) curve, and marginal-cost (MC) curve.? A B Demand Demand Price, Cost, Revenue ATC Price, Cost, Revenue ATC MC MC- MR MR Quantity of Crest Toothpaste Quantity of Crest Toothpaste