A student named Saada wants to use the CPM method to analyze a project schedule. She was able to obtain the following information.

Draw the network diagram using the AON format $($activity on node$).$ Calculate ES$/$EF$/$LS$/$LF$/$slack for all activities.

activity Immediate predecessor$($s$)$ Duration $($days$)$

A None $2$

B A $3$

C A $4$

D B$,$C $3$

E D $7$

F D $3$

G E$,$F $5$