Which solution will meet the requirements more efficiently?

A customer wishes to deploy a new application on VMware Cloud on AWS. This application will consist of several web servers and application servers. The data on the application services needs to be backed up regularly and backups must be stored outside the SDDC to meet compliance. The backup solution should be able to support full VMDK restores as well as file restores. A recovery time objective (RTO) of 5 hours is required for backups up to 30 days old. After 30 days, the RTO of a backup is 48 hours.

Which solution will meet the requirements more efficiently?
A . Deploy a third-party backup solution from a supported VMware ISV partner. Store backup jobs to Amazon Simple Storage Service (S3) or an Elastic Compute Cloud (EC2) instance with an attached EBS drive. After 30 days, migrate backups from S3 or EBS to Amazon Glacier.
B . Deploy a third-party backup solution from a supported VMware ISV partner. Store backup jobs to the local on-premises SDDC, and once the backups reach 30 days old, transfer these backups to tape libraries.
C . Deploy two SDDCs in two separate regions. Set up Site Recovery between the two SDDCs and configure vSphere Replication to take snapshots of the virtual machines every 15 minutes.
D . Deploy an SDDC cluster in stretched mode expanding across two availability zones in the same region. This configuration provides the lowest RTO possible.

Answer: A

Explanation:

Reference: https://d0.awsstatic.com/whitepapers/Backup_and_Recovery_Approaches_Using_AWS.pdf

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