Key inputs to Operating and Support Cost are: $($Select three that apply$)$

Costs of hardware and software updates that occur after deployment of a system that improve a system's safety, reliability, or maintainability, or otherwise enable the system to meet its basic original operational requirements throughout its life

Development costs of system prior to deployment

Energy costs

Costs of labor $($outside of the scope of ynit$-$level$)$ and materials at all levels of maintenance in support of the primary systent