Problem $5-7(Algo)$

The following activities are part $of$ a project $tobe$ scheduled using $CPM$:

$a.$ What $is$ the critical path?

$A-C-D-E-G$

$A-C-D-F-G$

$A-B-D-F-G$

$A-B-E-Gb.$ How many weeks will $it$ take $to$ complete the project?

Number $of$ weeks

$c.$ How much slack does activity $B$ have?