i just need help with question E please! will thumbs up!

3. Consider the following project activities DURATION (DAYS) ACTIVITY B D E F G H 3 7 9 8 7 6 13 4 12 1 5 4 5 PREDECESSORS None B D, E E E F, G, H IJK LM L M N a. (*) Draw the project network diagram. b. (*) Identify all the paths through the network and their lengths. c. (**) Identify all the critical activities and path(s). How long will the entire project take? d. (") After you complete part b and before you perform the forward and backward passes, you should already be able to tell that activities A and N are on the critical path(s). Why? e. (-) After constructing the project network diagram, management comes up with the following informa- tion regarding how many days certain activities can be crashed and at what cost: ACTIVITY D E NUMBER OF DAYS ACTIVITY CAN BE CRASHED 3 3 2 1 3 2 CRASH COST PER DAY $1,000 $2,500 $5,000 $1,000 $3,000 $2,000 H J Suppose that every day the project goes on costs the com pany $3,500. How many days should management crash the project? What activities should it crash? What is the new project length