A company hosts a web-based application on AWS in a departmental level VPC. The company has used AWS CloudFormation stacks to provision all the required resources in the AWS Cloud.
The company needs to migrate this application to the company level VPC. The application and network components need to be managed as separate entities. Before the company implements changes, the company wants to understand how the changes will affect resources that are already running.
Which combination of actions should a solutions architect take to meet these requirements?
(Choose two.)
A. Perform drift detection on the CloudFormation stacks to track the changes.
B. Enable AWS Config to track the changes to the CloudFormation stacks.
C. Create change sets before updating the CloudFormation stacks.
D. Create a CloudFormation root stack that has two nested stacks: one stack for the application layer and one stack for the network layer.
E. Create a CloudFormation cross-stack reference. Export company level VPC stack outputs. Import the stack outputs into the application stack.