Why is physical fitness important for a Master-at-Arms?

Physical fitness is paramount for a Master-at-Arms primarily because it ensures readiness to respond effectively to physical confrontations. This role often requires engaging in challenging and sometimes dangerous situations that necessitate a high level of physical ability. A physically fit individual is better equipped to handle the demands of physical altercations, chase suspects, or respond to emergencies where physical strength and endurance are crucial. Fitness enhances agility, reaction time, and overall capability, enabling a Master-at-Arms to uphold the law and ensure the safety of others efficiently and effectively.

While the other options touch on various benefits of physical fitness, they do not prioritize the immediate necessity of being prepared for confrontational situations, which is central to the responsibilities of a Master-at-Arms. The ability to work long hours on surveillance or manage stress is certainly beneficial, but these factors become secondary to the primal need to respond to and resolve confrontations successfully.