Answer: D
Option A is INCORRECT. Amazon CodeGuru is a developer tool powered by machine learning that provides intelligent recommendations for improving code quality and identifying an application’s most expensive lines of code.
Option B is INCORRECT. AWS CodeBuild is a fully managed continuous integration service that compiles source code, runs tests, and produces software packages that are ready to deploy.
Option C is INCORRECT. AWS CodeArtifact is a fully managed artifact repository service that makes it easy for organizations of any size to securely store, publish, and share software packages used in their software development process.
Option D is CORRECT. AWS CodeStar enables you to develop, build, and deploy applications on AWS quickly. AWS CodeStar provides a unified user interface, enabling you to manage your software development activities in one place easily.
Reference:
https://aws.amazon.com/codeguru/
https://aws.amazon.com/codeartifact/
https://aws.amazon.com/codebuild/
https://aws.amazon.com/codestar/