Which AWS service provides intelligent recommendations to improve code quality and identify an application’s most expensive lines of code?

Explanations:

Amazon CodeGuru provides intelligent recommendations to improve code quality and identify the most expensive lines of code. It analyzes code during reviews and offers suggestions for best practices, performance improvements, and cost optimization.

AWS CodeStar is a development service that helps you set up, manage, and develop your applications on AWS, but it does not specifically focus on code quality or performance analysis.

AWS CodeCommit is a source control service that hosts secure Git repositories. It facilitates collaboration and version control but does not provide recommendations or analysis for code quality.

AWS CodeDeploy is a deployment service that automates application deployments to various compute services. It is focused on deployment processes and does not analyze code quality or performance.