Problem 9-24 (Algorithmic) office Automation, Inc., developed a proposal for introducing a new computerized office system that will standardize the electronic archiving of invoices for a particular company. Contained in the proposal is a list of activitles that must be accomplished to complete the new office system project. Use the following relevant information about the activities: a. Which project network is correct? (1) (il) (III) (IV) b. Develop an acthity schedule. If yeur answer is sers, enter " 0 ". c. What are the critical activities, and what is the expected profect complation time? Cricical Path: Erpected projact completion time = wesks. e. Develop an activity schedule for the crashed project. If ysur answer is sero, enter "0". f. What addod project cost it required to meat the six-manth completion time