A financial services company runs a single Azure SQL Database that has grown to 3 TB and continues to expand by roughly 200 GB per month. Leadership requires that the database support future growth well beyond 4 TB, provide near-instantaneous backups regardless of database size, and allow rapid point-in-time restores to meet strict recovery objectives. The workload is transactional and cannot tolerate the downtime of migrating to a different platform. Which service tier should you recommend?