he AOA network for a certain project is given in the graph below with the task durations $($in days$)$ in the table beneath it$.$ The activities d$1$ and d$2$ are dummy activities.

What is the duration of this project?

Activity

a

b

c

d

e

f

g

h

Duration

$4$

$8$

$14$

$9$

$6$

$10$

$8$

$1$

Capture$(2).$GIF

$25$ days

$15$ days

$20$ days

$10$ days

None of the other options are correct