Final answer:
To migrate an AWS account from one AWS Organization to another, you need to create a new account in the target organization and use the AWS Organizations service to move the account.
Step-by-step explanation:
The correct steps to migrate an AWS account from one AWS Organization to another are:
- Create a new AWS account in Organization B
- Use the AWS Organizations service to move the account from Organization A to Organization B
- Delete the account from Organization A (optional)
Using the AWS Organizations service ensures that all the resources associated with the account, such as EC2 instances, S3 buckets, and IAM roles, are properly transferred to the new organization. It also maintains resource links and access control policies.