10 . Competitive Supermarkets A small town is served by many competing supennarkets, which all have the same constant marginal cost. Use the biacic point (pips symhoi) to show the competitive price and guantinr in this market. Then use the green area { triangie symhei) to shade the area representing consumer surplus in the market for groceries, and use the purpie area (diamond symbol) to shade the area representing producer sumius. \fWhiCh of the following statements is true about the changes that occur after the supermarkets merge? Check all that apply. [I The market ouantit'g:r decreases. D Total surplus remains unchanged. El Consumer surplus falls. D The market price decreases. El Producer surplus falls