Which version of this story best demonstrates Have Backbone; Disagree and Commit with clear ownership and impact?

Which version of this story best demonstrates Have Backbone; Disagree and Commit with clear ownership and impact? Version 1: "I noticed a 5% drop in customer satisfaction in our product area. I gathered data, challenged the team's assumptions, and proposed a new feature. After persistence, the team agreed, and satisfaction improved by 4%." Version 2: "We saw a drop in customer satisfaction and discussed possible causes. Together, we proposed a new feature and implemented it. Satisfaction improved afterward." Version 3: "During my work, I found a customer satisfaction drop outside my team. I investigated, proposed a fix, and coordinated with the other team. Satisfaction improved by 4%." Version 4: "I noticed a drop in satisfaction and escalated it to management. They decided on a new feature, which was implemented and improved satisfaction."