You're tasked with organizing a large-scale charity event, which includes the following tasks, their durations, and their dependencies: 1. Venue Booking (A): 2 days, no dependencies (no immediate predecessors) 2. Vendor Selection (B): 3 days, A is a predecessor. 3. Marketing Campaign (C): 5 days, no dependencies (no immediate predecessors). 4. Ticket Sales Setup (D): 2 days, B and C are both predecessors 5. Event Programming (E): 4 days, B is a predecessor 6. Final Preparations (F): 3 days, D and E are both predecessors. Now you want to expedite the project by 2 days. Each task can be expedited by 1 day at the following additional costs: 1. Venue Booking (A): $350 2. Vendor Selection (B): $150 3. Marketing Campaign (C): $34 4. Ticket Sales Setup (D): $200 5. Event Programming (E): $300 6. Final Preparations (F): $100 What is the least expensive way to reduce the total event preparation time by 2 days, and what is the total additional cost