need help and explanation - bold answers

STEP: 3 of 3 The following graph shows Sparkle's demand curve, marginal-revenue (MR) curve, average-total- cost (ATC) curve, marginal-cost (MC) curve, and profit-maximizing output and price. Demand Price, Cost, Revenue C ATC MC MR Quantity of Sparkle Toothpaste Indicate which of the labeled areas represent consumer surplus derived from the purchase of Sparkle toothpaste or deadweight loss relative to the efficient level of output. A B C D Consumer Surplus Deadweight Loss Suppose the government required Sparkle to produce the efficient level of output. Which of the following describes what would happen to the firm and Sparkle's customers? o Sparkle would earn negative profit, forcing it to shut down, and Sparkle's customers would gain no consumer surplus. Sparkle would earn zero profit, and its customers would be just as well off as before. Sparkle would earn positive profit and increase production, boosting consumer surplus.STEP: 1 of 3 Sparkle is one firm of many in the market for toothpaste, which is in long-run equilibrium. Indicate which of the following graphs accurately reflects Sparkle's demand curve, marginal-revenue (MR) curve, average-total-cost (ATC) curve, and marginal-cost (MC) curve. (? (?) B Demand Price, Cost, Revenue Demand ATC Price, Cost, Revenue ATC MC MC MR MR Quantity of Sparkle Toothpaste Quantity of Sparkle Toothpaste O A O BSTEP: 2 of 3 The following graph shows Sparkle's demand curve, marginal-revenue (MR) curve, average-total-cost (ATC) curve, and marginal-cost (MC) curve. Use the black point (plus symbol) to indicate Sparkle's profit-maximizing output and price. Demand Profit Max Price, Cost, Revenue ATC MC MR Quantity of Sparkle Toothpaste True or False: Sparkle's profit is zero. O True O False