An application reads far more than it writes, from three geographies. Which configuration reduces read latency at least cost?

1. A Multi-region writes in all three regions
2. ✓ B Single write region with read regions added in the other two (correct answer)
3. C Strong consistency across all regions
4. D Increase RU/s in the write region

Shortcut: Adding read regions replicates data for local reads without the cost and conflict-handling complexity of multi-region writes, which suits read-heavy workloads.