Which of the following is true regarding the new Army grooming standards for male Soldiers?

The statement regarding the bulk of hair on the scalp not exceeding 2 inches is accurate within the context of the Army grooming standards for male Soldiers. These standards are designed to maintain professionalism and uniformity among Soldiers while also considering individual expression within established guidelines.

The restriction on hair bulk, specifically not exceeding 2 inches, ensures that hair remains neat, clean, and presents a disciplined appearance, which is a top priority within military standards. This guideline helps to prevent styles that could detract from a uniform appearance and maintain the standards expected in most military environments.

In contrast, mustaches extending beyond the corners of the mouth is not allowed under the current regulations, as this can lead to an unkempt appearance. Hair being styled with designs is also prohibited, reflecting a uniform and disciplined look. Finally, earrings are generally not permitted for male Soldiers while in uniform, aligning with the Army's overall grooming and work uniform standards that emphasize professionalism.