Which of the following firms is most likely to have a board of directors that considers the best interest of all shareholders（）
A. Firms that assign a single vote to each share, but not firms with different classes of common equity with supermajority rights given to one class.
B. Firms that assign a single vote to each share, and firms with different classes of common equity with supermajority rights given to one class.
C. Firms with different classes of common equity with supermajority rights given to one class, but not firms that assign a single vote to each share.
