Given the following information regarding a project:

Activity

Predecessors

Duration

a

None

$3$

b

None

$6$

c

None

$8$

d

a

$7$

e

b

$5$

f

c

$10$

g

c

$4$

h

d$,$e$,$f

$5$

i

g

$6$

$$

$14.$ Which of the following is NOT a path in the network?

a$-$d$-$h

b$-$e$-$h

c$-$f$-$h

c$-$g$-$i

c$-$g$-$h

$$

$15.$ What is the critical path?

a$-$d$-$h

b$-$e$-$h

c$-$f$-$h

c$-$g$-$i

c$-$g$-$h

$$

$16.$ How long will it take to complete the project?

$15$

$16$

$18$

$23$

$25$

$$

$17.$ What is the LS for activity c$?$

$0$

$3$

$6$

$7$

$8$

$$

$18.$ What is the LF for activity h$?$

$13$

$17$

$18$

$23$

$$

$19$ What is the EF for activity h$?$

$8$

$12$

$13$

$18$

$23$

$$

$20.$ What is the LF for activity i$?$

$8$

$12$

$13$

$18$

$23$