A firm-fixed-price (FFP) contract to build four prototype helicopter rotors has a contract value of $40M. The program manager believes there is significant schedule risk. How should Earned Value Management (EVM) be applied to the contract? A. Apply EVM; a formal Earned Value Management System (EVMS) validation is not required. B. Apply EVM only if the Milestone Decision Authority (MDA) approves the use of EVM based on a business case analysis. C. Apply EVM; a formal Earned Value Management System (EVMS) validation is required. D. Apply EVM; Earned Value Management System (EVMS) compliance is not required.