You want to have multiple versions of your application running at the same time, with all versions launched via AWS
Elastic Beanstalk. Is this possible?

A.
No. However if you have 2 AWS accounts this can be done

B.
No. AWS Elastic Beanstalk is not designed to support multiple running environments

C.
Yes. AWS Elastic Beanstalk is designed to support a number of multiple running environments

D.
Yes. However AWS Elastic Beanstalk is designed to support only 2 multiple running environments

Explanation:
AWS Elastic Beanstalk is designed to support multiple running environments. As an example you could have one for
integration testing, one for pre-production, and one for production, with each environment independently configured and
running on its own separate AWS resources.
https://aws.amazon.com/elasticbeanstalk/faqs/