Your company operates an internal application solely for managing transactional orders, accessible exclusively by employees at a single physical location. This application necessitates strong consistency, rapid query responses, and ACID (Atomicity, Consistency, Isolation, Durability) compliance for handling multi-table transactional updates. Initially, the application was developed using PostgreSQL, and you now aim to migrate it to the cloud with minimal modifications to the existing codebase. Which cloud database solution would be the most suitable for this application?