(a) Unless the articles of incorporation or bylaws require a greater number, a quorum of a board of directors consists of:
(1) A majority of the fixed number of directors if the corporation has a fixed board size; or
(2) A majority of the fixed number of directors prescribed, or if no number is prescribed the number in office immediately before the meeting begins, if the corporation has a variable-range size board.
(b) The articles of incorporation or bylaws may authorize a quorum of a board of directors to consist of no fewer than one-third of the fixed or prescribed number of directors determined under subsection (a).
(c) If a quorum is present when a vote is taken, the affirmative vote of a majority of directors present is the act of the board of directors unless the articles of incorporation or bylaws require the vote of a greater number of directors. A director is, unless established to the contrary, presumed present for quorum purposes for the remainder of a meeting at which he or she has been present for any purpose.
(d) A director who is present at a meeting of the board of directors or a committee of the board of directors when corporate action is taken is deemed to have assented to the action taken unless: (1) he or she objects at the beginning of the meeting, or promptly upon his or her arrival, to holding it or transacting business at the meeting or, as to a matter required under the articles of incorporation or the bylaws to be included in the notice of the purpose of the meeting, he or she objects before action is taken on the matter; (2) his or her dissent or abstention from action taken is entered in the minutes of the meeting; or (3) he or she delivers written notice of his or her dissent or abstention to the presiding officer of the meeting before its adjournment or to the corporation immediately after adjournment of the meeting. The right of dissent or abstention is not available to a director who votes in favor of the action taken.