What is correct about the marginal cost function in a standard case? 0 marginal cost function corresponds to a total cost function 0 abatement is on the vertical axis and marginal cost is on the horizontal axis 0 abatement is on the horizontal axis and marginal cost is on the vertical axis the height of the the marginal cost curve at any given point represents the cost of each additional unit of abatement O A, B, and D are correct 0 A, C, and D are correct