(C) Determination of amount (i) Decisions The health plan and the nonparticipating provider shall each submit to the certified IDR entity a final offer of payment with respect to services which are the subject of the specified claim. Such entity shall select the offer that such entity determines is the most reasonable based on the factors described in paragraph (1)(C). (ii) Effect of decision A decision of a certified IDR entity under clause (ii)— (I) shall be binding