4. (a) Advantager University has hired several managers to cilitate its expans'mn plans. Using the data in Table 1, show in Gantt chart format (weeks on the horizontal axis and number of managers on the vertical axis), the resource loading for this project week by week, assuming that each activity starts as soon as possible. (b) Show in Gantt chart format how you would use resource levelling to achieve a reduction in variability in management requirements without increasing project duration. (c) Explain how your answer to (b) can help Advantager University, given that it is undergoing several expansion projects simultaneously