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You are designing a system that requires secure access to an Amazon S3 bucket from multiple regions. Which of the following approaches would be most effective in ensuring the confidentiality and integrity of data in transit?
A
Use a single S3 bucket and enable cross-region replication.
B
Create separate S3 buckets in each region and use a VPN gateway to connect them.
C
Create separate S3 buckets in each region and use private VIFs for cross-region networking.
D
Create separate S3 buckets in each region and enforce TLS for all API calls to the buckets.
