Which of the following is NOT a supported language on AWS Elastic Beanstalk?

AWS Elastic Beanstalk is a fully managed service that simplifies the deployment and scaling of applications designed in several programming languages. The supported languages by Elastic Beanstalk include PHP, Python, Ruby, and others, allowing developers to choose the technology stack that fits their needs.

C++ is not inherently supported on Elastic Beanstalk. While it is possible to run C++ applications on AWS through other services, such as EC2 or containers, Elastic Beanstalk does not have built-in support or configuration options specifically tailored for deploying C++ applications. This means it lacks the streamlined process and tooling that it provides for the other programming languages listed.

In summary, the correct answer is C++, as it is not among the officially supported languages in AWS Elastic Beanstalk, which enhances ease of use and operational support for the applications built with the other mentioned languages.