An organization’s security policy requires multiple copies of all critical data to be replicated across at least a primary and
backup data center. The organization has decided to store some critical data on Amazon S3. Which option should you
implement to ensure this requirement is met?

A.
Use the S3 copy API to replicate data between two S3 buckets in different regions

B.
You do not need to implement anything since S3 data is automatically replicated between regions

C.
Use the S3 copy API to replicate data between two S3 buckets in different facilities within an AWS Region

D.
You do not need to implement anything since S3 data is automatically replicated between multiple facilities within an AWS Region

Explanation:
You specify a region when you create your Amazon S3 bucket. Within that region, your objects are redundantly stored
on multiple devices across multiple facilities. Please refer to Regional Products and Services for details of Amazon S3
service availability by region.
https://aws.amazon.com/s3/faqs/