During a complex, multiyear project, a PM must discern which project tasks overlap so resources...

A Gantt chart is a visual tool used in project management to represent the timing of tasks required to complete a project. It is particularly useful for showing the start and finish dates of elements of a project, dependencies between tasks, and the current schedule status. This makes it an ideal choice for a project manager to discern overlapping tasks and allocate resources efficiently.

References = CompTIA Project+ Certification Study Guide (PK0-005)