Office Automation Inc., developed a proposal for implementing a software system that will standardize the accounts payable function by automatically issuing an electronic payment upon receipt of the vendor invoice. Contained in the proposal is a list of activities that must be accomplished to complete the project. The following table contains relevant information about the activities.

a$.$ How can the project be displayed graphically to better visualize the flow of the activities?

b$.$ What are the critical activities, and what is the expected project completion time?

c$.$ Assume that the company wants to complete the project in six months or $26$ weeks. What crashing decisions do you recommend to meet the desired completion time at the least possible cost? $(4$ points$)$

d$.$ What added project cost is required to meet the six$-$month completion time?