Which of the following statements is correct? a. The firm’s profit maximizing level of output will be found only in the elastic portion of the linear demand facing the firm. b. The firm’s profit maximizing level of output will be found only in the inelastic portion of the linear demand facing the firm. c. The firm’s profit maximizing level of output will be found either in the elastic or the inelastic portion of the linear demand facing the firm. d. The firm’s profit maximizing level of output will be found at the point where the linear demand facing the firm is unit-elastic.