Gantt chart are planning charts used to schedule resources and allocate time, which means that option C is the right answer.
A Gantt chart is a very useful project management tool which helps to show how the work is completed over a period of time in comparison to the time planned for the work. This enable to create a comparative chart. It can include all kinds of data, dates, tasks assigned and other needful information and can help correlate the data. It is widely used by business firms to deal with project scheduling, systematic operations and production routines. As the project progresses, the chart's bars are shaded to show which tasks have been completed.
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