Your web application is designed using a robust architecture that includes multiple Amazon EC2 instances, which are efficiently managed behind an Elastic Load Balancer (ELB). These instances operate within an Auto Scaling group that maintains a desired capacity of 5 EC2 instances. You are now planning to integrate AWS CodeDeploy to automate the deployment process for your application. One of your key requirements is that the deployment process should be capable of re-routing user traffic from the existing deployment environment to the new one seamlessly.

Which of the following options will fulfill these deployment requirements?