For planning purposes graphical charts can be a useful tool. What type of chart is good for showing the dependency of one activity upon another and shows the relationship among a network of activities?

Correct Answer: Option D — PERT chart

A PERT (Program Evaluation and Review Technique) chart is specifically designed to map out complex projects by showing the interdependencies between various tasks. It identifies the critical path, allowing managers to visualize how the delay of one activity will impact the overall project timeline and completion date.