Which of the following is a requirement for male earrings?

The requirement stating that the earring cannot create or support ear gauging is accurate because the Army's policies regarding appearance and uniform standards emphasize maintaining a professional and conservative appearance. Gauging typically involves stretching the earlobe to accommodate larger jewelry, which can detract from the uniformity and discipline expected of military personnel. By prohibiting ear gauging, the policy ensures that all members maintain a neat and orderly appearance, consistent with military standards. This helps to reinforce the sense of unity and professionalism within the ranks.

The other options do not align with Army regulations. For instance, there is no requirement specifying the size or shape of male earrings, and the policy does not mandate that all males wear earrings, as this is not a standard requirement for male soldiers. Thus, the focus on avoiding ear gauging is a specific guideline that upholds the standards of wear and appearance in the Army uniform.