Which version of this answer best demonstrates Think Big with clear ownership and measurable impact?

Which version of this answer best demonstrates Think Big with clear ownership and measurable impact? Version 1: "I noticed a slowdown in our service and escalated it to the platform team. They fixed the issue, and performance improved." Version 2: "We identified a scaling issue affecting multiple teams and worked together to deploy a fix. Customer satisfaction improved." Version 3: "I found a bottleneck outside my team, investigated the root cause, and implemented a fix. The fix reduced errors by 20%." Version 4: "During a review, I spotted a 0.5% drop in throughput outside my team. I traced the issue, wrote a fix, and coordinated rollout with the platform team. Throughput improved by 0.5%, protecting $10K/week in revenue."