According to Article 91 of the UCMJ, who does it distinguish?

The focus of Article 91 of the Uniform Code of Military Justice (UCMJ) is specifically on insubordinate conduct toward noncommissioned officers (NCOs) and warrant officers. This article addresses offenses such as disobedience of a superior commissioned officer and provides a framework for prosecution of enlisted members who fail to follow lawful orders given by their superiors.

While the distinction between non-rated personnel and petty officers is addressed in a broader military context, Article 91 centers primarily on the authority and responsibilities of noncommissioned officers in relation to enlisted personnel. It delineates how enlisted members must conduct themselves towards their superiors, thereby establishing a clear line of authority and accountability within the military hierarchy.

Options focusing on other demographics, such as reservists and active-duty members or the distinction between senior and junior officers, are not the primary concern of this article, which specifically involves the relationship and obligations between enlisted personnel and NCOs. Therefore, the correct understanding revolves around the specific dynamics of rank and authority related to noncommissioned officers as laid out in Article 91.