The perfectly competitive firm, whose total revenue (TR) and total cost (TC) curves are shown on the right, should produce A. 8 units, since that is where MC=p. B. either 8 or 34 units, since MC=MR at both levels of production. C. 34 units, since that is where MC=MR and MC is decreasing. D. 34 units, since that is where MC=MR and MC is increasing. E. 8 units, since that is where its profits will be maximized