The total cost of producing a certain good is given by TC = 30In (q +300) + 150. Find the marginal cost (MC) and the average cost(AC) functions. O a. MC = Ob. O c. O d. 9+300 and AC = 30g and AC =9 The total cost of producing a certain good is given by \[ T C=30 \ln (q+300)+150 . \] Find the marginal cost \( (M C) \) and the average cost \( (A C) \) functions. a. \( \quad M C=\frac{30}{q+300} \) 1 answer