Which version of this answer best demonstrates strong Ambiguity and Problem Solving competency?

Which version of this answer best demonstrates strong Ambiguity and Problem Solving competency? Version 1: "I was assigned to a project with unclear requirements. I asked the team for input and we decided on a solution together. The project was completed successfully." Version 2: "During a project with unclear requirements, I identified key ambiguities, gathered stakeholder input, and defined clear goals. I led the solution design and tracked progress, resulting in a 15% reduction in delivery time." Version 3: "We faced unclear requirements, so we brainstormed as a team and implemented a solution. I contributed to the implementation and the project met deadlines." Version 4: "I noticed ambiguous requirements in a project outside my team. I clarified them by interviewing stakeholders, designed a solution, and coordinated rollout. This reduced rework by 20%."