What must Officer Trainees do when marching to work details?

When marching to work details, Officer Trainees must march in pairs to maintain a disciplined formation and facilitate effective communication. This method allows for a streamlined approach that enhances cohesion and unity among the trainees, promoting an orderly and synchronized movement. Marching in pairs also helps to develop important skills such as teamwork and accountability, as each trainee is responsible for their partner, fostering a sense of camaraderie and mutual support.

The other choices do not align with the standard procedures or principles of military formations that emphasize paired movement for efficiency and collective responsibility. Marching in groups of four, single file, or rows of three may not provide the same level of coordination and interpersonal interaction that is valuable during training exercises. Thus, the practice of marching in pairs stands out as the most effective and appropriate choice for Officer Trainees during work detail movements.