(a) A corporation may, before final disposition of a proceeding, advance funds to pay for or reimburse the reasonable expenses incurred by a director who is a party to a proceeding because the director is a director if the director delivers to the corporation:

(1) A written affirmation of the director's good faith belief that the director has met the relevant standard of conduct described in Code Section 14-3-851 or that the proceeding involves conduct for which liability has been eliminated under a provision of the articles of incorporation as authorized by paragraph (4) of subsection (b) of Code Section 14-3-202; and

(2) The director's written undertaking to repay any funds advanced if it is ultimately determined that the director is not entitled to indemnification under this part.

(b) The undertaking required by paragraph (2) of subsection (a) of this Code section must be an unlimited general obligation of the director but need not be secured and may be accepted without reference to the financial ability of the director to make repayment.

(c) Authorizations under this Code section shall be made by the board of directors:

(1) If there are two or more disinterested directors, by a majority vote of all the disinterested directors (a majority of whom shall for such purpose constitute a quorum) or by a majority of the members of a committee of two or more disinterested directors appointed by such a vote; or

(2) If there are fewer than two disinterested directors, by the vote necessary for action by the board in accordance with subsection (c) of Code Section 14-3-824, in which authorization directors who do not qualify as disinterested directors may participate.