The correct option is Cobertura.

Cobertura is a Java code coverage tool that instruments classes and measures which lines and branches are executed by automated tests. It produces coverage reports expressed as percentages and fits naturally into continuous integration pipelines where teams need a numeric measure of how much of the codebase is exercised by tests.

Cobertura can output reports in HTML and XML and it can be integrated into build workflows so a pipeline can publish coverage results or enforce thresholds when coverage falls below an expected percentage.

JaCoCo is a separate Java coverage tool and it can also report coverage percentages, but it is not the option marked correct in this question. It is an alternative rather than the expected answer here.

Maven is a build and project management tool and it does not itself provide test coverage metrics. Coverage reporting in a Maven-based build is provided by plugins or by external coverage tools rather than by Maven alone.

Full AWS Practitioner Certification Question