Draw a Project Network and Determine the Critical Path (Show complete diagram)

Determine the one best activity to crash by adding more labor to complete the website in 15 days. (Show complete crashed project network diagram)

How many days can they delay information gathering until it lengthens the overall completion time for the website?

I already started working on the diagram but I'm a little confused. However, I found out H = 19. Therefore, "Finish" is 19.

Immediate Activity Description Predecessor Time (Days) Information A 2 Gathering B Planning 3 C Design B 2 Content Writing D 3 and A.C Assembly F Coding C,D 6 Website F E 3 Testing Website G E 2 Review H Launch F.G 2