Which of the following is NOT a common issue type in Jira?

In Jira, issue types are fundamental categories that represent different types of work or tasks in a project. The common issue types include Task, Bug, and Story, each serving specific purposes in a project management workflow.

A Task is used for various types of work that need to be completed, while a Bug represents an error or defect in the software that needs to be fixed. A Story typically refers to a piece of work that delivers a specific value to the user and is often used in agile project management methodologies.

On the other hand, a Comment is not an issue type but rather a feature used to facilitate communication and documentation within an existing issue. Comments allow team members to discuss details, provide updates, or ask questions related to that specific issue, enhancing collaboration but not constituting a stand-alone issue type. This differentiation makes Comment the correct answer to the question regarding which option is NOT a common issue type in Jira.