how to solve please

Question 2 4.8 / 24 pts Angels Inc. fabricates garage doors. Roofs are punched in a roof punching press (R-Punch) for 11 minutes per roof, and then are formed in a roof forming press (R-Form) for 18 minutes per roof. Bases are punched in a base punching press (B-Punch) for 15 minutes per base, and then formed in a base forming press (B- Form) for 6 minutes per base. The formed base is welded in a base welding machine (Weld) for 7 minutes per base. The base and the roof then go to final assembly (Assembly) which takes 8 minutes per garage door. There is one operator and one machine at each station. The operator and the machine work as a single server. 4. Suppose we double the capacity of the bottleneck(s) by adding the same capital and human resources to each bottleneck. What is the new capacity of the system in terms of garage doors per hour? The potential answers are: A: 4 units. B: 3.53 units. C: 3.33 units. D: 8.57 units. E: 4.62 units. E 5. Where is the new bottleneck? The potential answers are: A: R-Form B: B-Form C: B-Punch D: R-Punch E: All A