(b) Four voting members of the commission are a quorum for the transaction of any business and for the performance of any duty.
(c) A majority vote of the voting members present is required for any final determination by the commission.
(d) The commission may elect to meet in executive session after an affirmative vote of a majority of its members present according to section four, article nine-a, chapter six of this code.
(e) The commission shall keep a complete and accurate record of all its meetings according to section five, article nine-a, chapter six of this code.