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What tools would you recommend for migrating a data warehouse to Google Cloud and ensuring real-time updates from transactional systems, given that the files are not large in number but each is 90 GB in size?
A
Use gsutil for both the migration and real-time updates
B
Use Storage Transfer Service for the migration; Pub/Sub and Cloud Data Fusion for real-time updates
C
Use BigQuery Data Transfer Service for the migration; Pub/Sub and Dataproc for real-time updates
D
Use gsutil for the migration; Pub/Sub and Dataflow for real-time updates
