The table below shows Lanark's production possibilities. A B C D E F Wheat 15 26 34 37 38 Cars 20 19 17 13 7 13 a. If Lanark is producing 15 cars, it can produce approximately wheat. b. If Lanark is currently producing combination C, the cost of 8 more wheat is (Click to select) c. If Lanark is currently producing combination D, the approximate per unit cost of an additional car is (Click to select) . If necessary, round your answers to 1 decimal place. Remember to round 0.05 up to 0.10