Please advise answer to C.

Roger Ginde is developing a program in supply chain management certification for managers. Ginde has listed a number of activities that must be completed before a training program of this nature could be conducted. The activities, immediate predecessors, and times appear in the accompanying table: Activity Immediate Predecessor(s) Time (days) 4 6 2 10 5 5 B AD E, F F G 10 This exercise contains only parts b, c, and d. b) The critical activities for the leadership training program development project are B-D-E-G c) The project length for the leadership training program development project = days