What action should a cadet in-charge take when an officer of greater rank passes by?

When an officer of greater rank passes by, the appropriate action for a cadet in-charge is to salute and greet the officer. This action demonstrates respect for the officer's rank and authority, which is a fundamental part of military conduct and protocol. Saluting is a traditional military gesture that signifies acknowledgment of rank and adherence to the hierarchical structure within the armed forces.

Greet may also include verbal recognition, which helps to foster camaraderie and professionalism within the ranks. Such actions reinforce the values of respect, discipline, and proper military etiquette that are essential in maintaining order and professionalism in a military environment.

Other options, such as ignoring the officer, standing at attention without greeting, or turning away, do not adhere to established protocols and can be viewed as disrespectful or unprofessional, undermining the structure and morale of the military unit. Saluting and greeting embodies the correct approach, adhering to both protocol and the values expected within military culture.