2. A calering manager has been asked to arganize a banquet for 100 guests. Table 1 shows the key activities, their durations and precedence. a. Construct a network diagram b. Identify the critical activities c. Prepare a Gantt chart showing all the activities and the float available for the non-crical activities. d. What is the ahortest time in which the project can be campleted? Table 1 Banquet activities