A. Modify EBS default encryption settings in the target AWS Region to enable encryption. Use an Auto Scaling group instance refresh.
B. Modify the launch templates for the web layer and the backend layer to add AWS Certificate Manager (ACM) encryption for the attached EBS volumes. Use an Auto Scaling group instance refresh.
C. Create a new AWS Key Management Service (AWS KMS) encrypted DB cluster from a snapshot of the existing DB cluster.
D. Apply AWS Key Management Service (AWS KMS) encryption to the existing DB cluster.
E. Apply AWS Certificate Manager (ACM) encryption to the existing DB cluster.

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