NCARB Practice Exam Question

A question in the practice exam case studies regarding the bleachers asks you to pick the best location for the concession/restroom. You are given an option between 4 locations and a spatial relationship diagram. If you were to overlay the spatial relationship diagram over each one of the 4 location it gives you a pretty clear idea which one fits the best, however that ends up not being the correct answer. Can you help clarify how you ended up justifying the correct answer?