ou are managing a project with the following activities and known activity times:

?

Activity

Time $($ weeks $)$

Predecessors

A

$2$

$--$

B

$4$

$--$

C

$3$

$--$

D

$5$

A $,$ B

E

$7$

B $,$ C

F

$4$

D $,$ E

?

Part $1.$ ?What is the critical path for this project?

?

A $-$ D $-$ F

B $-$ E $-$ F

B $-$ D $-$ F

C $-$ E $-$ F

A $-$ E $-$ F

?

?

Part $2.$ ?What is the project completion time for this project?

?

$18$ ?weeks

$15$ ?weeks

$12$ ?weeks

$11$ ?weeks

$25$ ?weeks