Answer:
c) The number and width of exit routes
Explanation:
You want to know the architectural design feature is most important for ensuring crowd safety in a modern stadium.
In any venue where many people gather, the design must consider how the crowd can safely exit the venue in a minimum of time. If an event occurs that causes the crowd to panic and need to exit the venue, the number and capacity of the exit routes becomes the most important design feature. Considerations include the exit appearance, signage, width, changes in elevation, handrails, directness of the route, obstacles bottlenecks.
Most important is the number and width of exit routes, choice C.