Establish a new Auto Scaling group and target group for the beta application, then modify the ALB routing rule to recognize a 'version' cookie set to 'beta'.

Create a separate ALB, Auto Scaling group, and target group for the beta application, and set up an alternate Route 53 record pointing to the new ALB for test requests.

Introduce a new ALB, Auto Scaling group, and target group for the beta application, employing CloudFront with Lambda@Edge to route specific test requests to the new ALB.

Form a new Auto Scaling group and target group for the beta application, adjust the ALB routing rule for 'version' cookie 'beta' recognition, and employ CloudFront with Lambda@Edge to inject the necessary cookie in test requests.