Common Stock vs Preferred Stock

Which of the following statements correctly describes a difference between preferred stock and common stock?

1. Preferred stockholders generally have voting rights, while common stockholders do not.
2. Preferred stock dividends are typically fixed and paid before common stock dividends.
3. Common stock dividends must be paid, while preferred dividends are optional.
4. Common stockholders have a higher claim on assets in liquidation than preferred stockholders.