Mr. Sierras' class wants to develop a new smart classroom using Program Evaluation and Review Technique (PERT). The objective is to be the first to design and market the most innovative smart classroom so as to capture the first mover advantage in the U.S. education market. Mr. Sierras' brilliant students have determined the following activities, precedence relationships, and time estimates in days for the project: Activity Immediate Predecessors Optimistic Time Most Likely Time Pessimistic Time a none 4. 6 7 b a 1 2 3 5 5 5 d b 7 9 12 e b 2 4 8 f C, d 6 9 10 A car rental company at a major airport has 70% of its fleet of 200 cars rented each day on average. Cars are rented for an average of 4 days. How many rentals are processed each day on average? a) More than 50 but less than or equal to 100 cars per day b) More than 150 but less than or equal to 200 cars per day c) More than 100 but less than or equal to 150 cars per day d) Less than 50 cars per day