Which of the following is a continuous integration tool?

Jenkins is a widely recognized continuous integration and continuous delivery (CI/CD) tool. Its primary function is to automate the software development process, allowing developers to build, test, and deploy code more efficiently. Jenkins integrates with various version control systems, enabling automatic builds when changes are detected in the source code repository. This process helps teams ensure that their software remains in a deployable state at all times and facilitates rapid feedback on code changes through automated testing.

By enabling the automation of repetitive tasks, Jenkins allows development teams to focus on writing code rather than managing the build and deployment processes, which enhances productivity and reduces the likelihood of human error. Additionally, the extensive plugin ecosystem of Jenkins allows for integration with various tools and technologies used in the software development lifecycle, further solidifying its role as a central component of continuous integration practices.