Which version of this story best demonstrates strong Move Fast signals?

Which version of this story best demonstrates strong Move Fast signals? Version 1: "I was reviewing logs and saw a 0.5% error spike in a service outside my team. I escalated to the owning team, who fixed it quickly. The error rate dropped afterward." Version 2: "We noticed an error spike together and investigated as a team. We found the root cause and deployed a fix. Errors decreased significantly." Version 3: "During routine checks, I spotted an error increase in another team's service. I took ownership, diagnosed the issue, and rolled out a fix. The error rate dropped to zero within hours." Version 4: "I saw an error spike and told my manager. The team then worked on a fix, which improved the system." Choose the strongest version.