If the delivery date is several months away and there is substantial chance of price escalation, a supplier may feel that there is far too much risk of loss to agree to sell under a a. cost-no-fee (CNF) b. cost-plus-incentive-fee (CPIF) c. firm-fixed-price plus incentive fee (FFPIF) d. cost-plus-fixed-fee (CPFF) e firm-fixed-price (FFP)