A company has deployed a business-critical application in the AWS Cloud. The application uses Amazon EC2 instances that run in the us-east-1 Region. The application uses Amazon S3 for storage of all critical data.
To meet compliance requirements, the company must create a disaster recovery (DR) plan that provides the capability of a full failover to another AWS Region.
What should a solutions architect recommend for this DR plan?
A. Deploy the application to multiple Availability Zones in us-east-1. Create a resource group in AWS Resource Groups. Turn on automatic failover for the application to use a predefined recovery Region.
B. Perform a virtual machine (VM) export by using AWS Import/Export on the existing EC2 instances.
Copy the exported instances to the destination Region. In the event of a disaster, provision new EC2 instances from the exported EC2 instances.
C. Create snapshots of all Amazon Elastic Block Store (Amazon EBS) volumes that are attached to the EC2 instances in us-east-1. Copy the snapshots to the destination Region. In the event of a disaster, provision new EC2 instances from the EBS snapshots.
D. Use S3 Cross-Region Replication for the data that is stored in Amazon S3. Create an AWS CloudFormation template for the application with an S3 bucket parameter. In the event of a disaster, deploy the template to the destination Region and specify the local S3 bucket as the parameter.
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