please help me on this

Question 20 (1 point) Station 1 Machine A 30 min/unit Station 2 Station 3 5 min/unit 14 min/unit Station 1 Machine B 30 min/unit A three station work cell is illustrated in the image above. A unit needs to be processed at either Machine A or Machine B for Station 1 (parallel lines, both lines doing the exact same thing). The unit is then processed at Stations 2 and 3 before leaving the work cell. The process time of each machine/station is indicated in the flowchart. Specify the bottleneck(s). Note: 1- These are checkboxes, you can select more than one option if required. Station 1 Machine A Station 1 Machine B Station 2 Station 3 4