Q$4.$ Consider the project below for crashing then answer the questions below?

a$.$ What are the critical activities? What is the project completion time? $(4$ points$)$

b$.$ If we need to crash the project by $1$ day, how can we accomplish this? $($fill in the blanks

below$)(3$ points$)$

We would crash activity$/$activities

by

day$($s$)$ and the cost will be

c$.$ Draw an updated network after the one day crash you did in part $($b$)$ above: $(4$ points$)$ please draw by hand