Scenario: In your JIRA project, you have a parent issue representing a feature, and you want to track the development tasks required to complete that feature. What type of issues would you create to represent these development tasks, and how would you link them to the parent issue?

Option 1: "Sub-tasks" is the correct option. When you have a parent issue representing a feature in JIRA and need to track the development tasks required to complete that feature, you create sub-tasks. Sub-tasks break down the parent issue into smaller, manageable tasks, each representing a specific aspect of the feature development. These sub-tasks are then linked to the parent issue, allowing for hierarchical organization and clear visibility into the progress of individual tasks contributing to the completion of the feature.