Explanation
The SAFe Lean-Agile Principle that includes the critical part of "delaying decisions to the last responsible moment" is "Assume variability; preserve options". This principle is based on the concept of set-based design, which is a way of managing uncertainty and complexity in product development. Set-based design means exploring multiple possible solutions in parallel, eliminating inferior options over time, and converging on the best solution as more information becomes available. Delaying decisions to the last responsible moment means keeping multiple options open until enough data and feedback are gathered to make an informed decision, which reduces risk and waste. References: SAFe Lean-Agile Principles, SAFe Principle #4