Which one of the following test and evaluation (T and E) products is required at Milestone C?

At Milestone C, the required test and evaluation (T&E) product is the "Test Readiness Review" (TRR). The TRR assesses whether a system is ready to proceed into operational testing and ensures that all necessary tests have been completed successfully. This review evaluates the adequacy of the test plans, the completion of required developmental testing, and the readiness of the system for live operational testing.