Which of the following is prohibited for cadets regarding jewelry?

The prohibition against wearing earrings during class hours is grounded in maintaining a professional and uniform appearance among cadets. This policy helps ensure that all cadets look cohesive and adhere to the standards expected within a military or disciplined environment. Jewelry can be seen as a distraction or an opportunity for self-expression that might detract from the decorum and focus necessary during training or instructional periods.

In contrast, wearing a single necklace, bracelets, and rings may be allowed under specific rules or contexts, suggesting that certain accessories are acceptable as long as they do not interfere with the cadet's duties or the uniformity of their appearance. This distinction reflects the broader philosophy of creating a disciplined and uniform environment while allowing for minimal personal expression in non-instructional settings.