An organization uses a lean startup model to quickly validate ideas and narrow down on...

The "Exploratory" lifecycle in Disciplined Agile (DA) is most suitable for a lean startup model that focuses on quickly validating ideas and narrowing down candidate projects to pursue. The Exploratory lifecycle is designed for situations where the primary goal is to learn and validate assumptions rapidly through experimentation and feedback. This aligns with the lean startup approach of testing hypotheses, iterating quickly, and adapting based on validated learning. Options A (Continuous delivery Agile), B (Agile), D (Lean), E (Continuous Delivery Lean), and F (Program) do not focus specifically on the rapid learning and experimentation phase that characterizes the lean startup model.