43. The following table gives the cost and revenue, in dollars, for different production levels, q (a) At approximately what production level is profit maximized? (b) What price is charged pe nor this product?4 (c) What are the fixed costs of production? 0 | 100 200 300 400 500 R 0 5001000 1500 2000 2500 C() 700 900 1000 1100 1300 1900