You are about to contract out a project to a service provider. However, at the time of awarding the contract, you are not sure of the total effort involved. Since the scope of work cannot be accurately estimated, you want to agree the per unit rates for difference services. Which of the following would best suit your purpose?
A. Cost-Plus-Fixed-Fee (CPFF)
B. Time & Material (T&M)
C. Fixed Price (FP)
D. Cost-Plus-Incentive-Fee (CPIF)