Which type of planning tool displays each task as a horizontal bar that reflects the time required for completion?

The correct response is based on the function and visual representation of a Gantt chart, which is specifically designed to display project schedules. A Gantt chart uses horizontal bars to represent the duration of individual tasks, with the length of each bar indicating the time required for completion. This allows project managers and teams to easily visualize the timeline of tasks, see overlaps and dependencies, and track progress.

In comparing this with a PERT chart, it is important to note that a PERT chart focuses on the relationships and dependencies between tasks rather than their duration. PERT (Program Evaluation and Review Technique) illustrates tasks as nodes connected by arrows, which represent the sequence and timing of tasks in a project, rather than showing their duration visually as bars do. Thus, while both tools are used in project management, the Gantt chart is the one that distinctly shows each task as a horizontal bar reflecting the time required for completion.