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)
A		2
B		7
C		2
D	B	10
E	A, D	4
F	C	5
G	E, F	8

This exercise contains only part a.

a) The correct activity-on-node (AON)

diagram for the project is