The governmental body may require one or more of the following forms of security to assure the timely, faithful, and uninterrupted provision of operations and maintenance services procured separately or as one element of another project delivery method:
(a) operations period surety bonds that secure the performance of the contractor's operations and maintenance obligations;
(b) letters of credit in an amount appropriate to cover the cost to the governmental body of preventing infrastructure service interruptions for a period up to twelve months; and
(c) appropriate written guarantees from the contractor, or depending upon the circumstances, from a parent corporation, to secure the recovery of reprocurement costs to the governmental body if the contractor defaults in performance.