((a)) ** .—** The board of directors is the governing body of the corporation. The board shall consist of at least 15 directors elected annually by the members.
((b)) ** .—** The officers of the corporation are a chairman of the board, a president, one or more vice presidents, a secretary, a treasurer, and any assistant officers designated by the board. The officers have the powers and shall carry out the duties provided in the bylaws or prescribed by the board.