You have decided to award a contract to a seller that has provided its services to your company frequently in the past. This seller has a good record in terms of schedule and cost performance, and your working relationship with this seller is excellent. Your current project, although somewhat different from previous projects, is similar to other work the seller has performed. In this situation, to minimize your risk you should award what type of contract?
A、Fixed-price with economic price adjustment
B、Fixed-price incentive (firm target)
C、Firm-fixed-price
D、Cost-plus-award fee