$1.$ A computer$-$system installation project consists of eight activities. The immediate predecessors and activity times in weeks are as follows:

Activity

Immediate Predecessor

Activity Time

A

$-------$

$3$

B

$-------$

$6$

C

A

$2$

D

B$,$C

$5$

E

D

$4$

F

E

$3$

G

B$,$C

$9$

H

F$,$G

As a project manager, where would you focus your attention given your analysis?