Public securities; price.

A. A public body may issue and sell its public securities at, above or below par and at any net effective interest rate as the public body may determine subject to the remaining provisions of this section. B. A public body may not issue its public securities as provided in Subsection A of this section at any net effective interest rate in excess of twelve percent a year, except for general obligation bonds which shall have a net effective interest rate of not more than ten percent a year, unless the state board of finance at any time prior to delivery of the public securities approves such higher net effective interest rate in writing, based upon the determination of the state board of finance that the higher rate is reasonable under existing or anticipated bond market conditions. C. Any such approval of any such net effective interest rate in excess of twelve percent or not more than ten percent for general obligation bonds shall constitute conclusive authority for the affected public body to issue its public securities at the higher net effective interest rate.