Life Cycle Sustainment covers which phases?

• A. Planning, Acquisition, Operation, Maintenance, and Disposal
• B. Design only
• C. Manufacturing only
• D. Sales and Marketing

Answer: (A)

Life cycle sustainment focuses on keeping a system ready and supported across every stage of its life. It means planning for the needed support, securing the resources through acquisition, ensuring the system operates effectively in the field, performing ongoing maintenance, and handling eventual disposal. Because it spans planning, acquisition, operation, maintenance, and disposal, this option covers the full lifecycle, making it the best fit. The other choices focus on a single, or unrelated, phase: design only covers early development; manufacturing only is about production; sales and marketing relate to commercial aspects rather than sustaining the system over time.