8. The marginal cost schedule of a firm can be interpreted as its supply schedule in the production of a good because
A. marginal cost will increase when the output of the firm increases.
B. we can tell the quantity of the good the firm plans to produce from the marginal cost schedule
given the price of the good.
C. the quantity of the good the firm plans to produce depends positively on the marginal cost of
producing the good.
D. we can tell the price of the good from the marginal cost schedule given the quantity of the good.
點解A 唔岩 ????????