A competitor-of Kozar International, Inc. has begun marketing a new instant-developing film project. Kozar has had a similar product under study its R.D department but has not yet been able to begin production. Because of the competitor's action, top managers have asked for a speedup of R8.D activities 50 that Kozar can produce and market instant film at the earliest possible date. The predecessor information and activity time estimates in months are shown in the following columrs. a. Choose the correct project network. The correct network is B. Develop an activity schedule for this profect using early and late start and finish times and compute activity stack time. If your answer is zero enter " 0 ". Round your answers to the nearest whole number Define the critical path. The critical path is C. What is the probability of completion in 28,29 , and 30 weeks? Use Apoendix A to answer the question. Do not round intermiediate calculations Round your answers to four decimal places. Probability of completion in 28 weeks: Probability of completion in 29 weeks: probability of completion in 30 weeks