(1 pt each) Kofi, Carla, and Peter all mow lawns for money. Each of them operates a different lawn mower. The accompanying table shows the total cost to Kofi, Carla, and Peter of mowing lawns. i. Who has increasing marginal cost ii. Who has decreasing marginal cost ili. Who has constant marginal cost? Quantity Kofi's Total Carla's Total Peter's Total of Lawns cost cost cost Mowed O O O O 4 80 8 40 8 140 28 80 12 180 68 120 16 200 128 160 20 208 208 200