Which AWS service should the developer use?

Explanations:

AWS CodeStar is a development environment and project management service. It does not specifically host GitHub-based code or repositories but integrates with various services like CodeCommit for version control.

Amazon CodeGuru is a service that provides automated code reviews and application performance recommendations. It does not host code repositories.

AWS CodeCommit is a fully managed source control service that can securely host Git-based code repositories, making it the correct choice for hosting GitHub-based code.

AWS CodePipeline is a CI/CD service for automating the build, test, and deploy processes of applications. It does not specifically host code repositories.