In which of the following ways is preferred stock similar to a fixed-income security? (a) Preferred stockholders don't get a vote at shareholder meetings, unlike other equities such as common stock (b) Preferred stockholders are given shares of a firm's profits in the form of divi- dends (c) Preferred stockholders are promised a known yield on their investments (d) Preferred stockholders have priority in liquidation over other equities such as common stock