Except as provided in subparagraphs (B) and (C)(iii), any State that provides for the purchase of foods under the program at retail grocery stores shall, with respect to the procurement of infant formula, use—
(I)#
a competitive bidding system; or
(II)#
any other cost containment measure that yields savings equal to or greater than savings generated by a competitive bidding system when such savings are determined by comparing the amounts of savings that would be provided over the full term of contracts offered in response to a single invitation to submit both competitive bids and bids for other cost containment systems for the sale of infant formula.