Firms must typically purchase inputs from suppliers to produce output. What effect might suppliers have on an industry? OA. If an input is specialized, then the supplier is likely to have the bargaining power to limit a firm's profits. OB. If only a few firms can supply an input, then markets will likely experience shortages because firms are unable to produce sufficient output. OC. Suppliers cannot affect output markets, although an output market with only a few firms is likely to have the bargaining power to limit a supplier's profits. OD. If suppliers are price takers, then a firm will likely be a price taker with no ability to raise price. OE. If many firms can supply an input, then suppliers are likely to have the bargaining power to limit a firm's profits