We saw that the marginal product curve could dip below the horizontal axis or become negative; why does the marginal cost curve not do the same thing? Question 6Select one: a. It is possible for an employee to reduce a firm's total output, but it is impossible for a firm to experience negative costs of production. b. It is possible for a firm to produce a negative amount of output, but it is impossible for a firm to have a negative number of employees c. Marginal product is negative when c