Disciplined Agile Delivery (DAD) defines a delivery life cycle consisting of three phases: Inception, Construction, and Transition. Inception focuses on initial project planning, stakeholder alignment, and getting the team ready to work. Construction is the phase where the team builds the solution in iterations, delivering incremental value. Transition involves preparing the solutionfor release, including final testing, deployment, and user training. The other options (A, B, C) do not accurately reflect the terminology and phases used in the DAD life cycle.