As a GCP Cloud Architect tasked with designing a robust, multi-regional data storage solution with immediate consistency, which GCP service would you recommend?

*For a robust, multi-regional data storage solution requiring immediate consistency, Cloud Spanner with global instances is the best recommendation. Cloud Spanner is a fully managed, scalable, global database service that offers strong consistency, high availability, and database operations across regions. Its global instances provide immediate consistency across all regions, making it an ideal choice for applications that require consistent and reliable data access on a global scale. This is particularly important in scenarios where data integrity and synchronous replication are critical. Other options, such as Cloud Bigtable, Cloud SQL, or Google Cloud Storage, do not offer the same level of immediate consistency or are not primarily designed for database operations that demand such consistency.*