The cost curves for Chopin's Bedpans are given below. The market price of bedpans is $10. A) QC = 500 bedpans. What are the firm's total revenues, total costs, and total profits at QC? Show your work. B) QB = 350. What are the firm's total revenues, total costs, and total profits at QB? Show your work. C) At the current price of $10, does the firm make positive, zero, or negative economic profit at QA