Which of the following optional items are authorized with the full dress white uniform?

The full dress white uniform has specific regulations regarding optional items that can be worn with it. The correct answer, which is the black umbrella, is authorized as it is a practical accessory for formal occasions, especially in inclement weather. The black umbrella serves both a functional purpose and maintains the formal appearance of the uniform, aligning with the standards expected in military dress codes.

Other items listed do not meet the criteria set forth for optional accessories within this uniform guideline. This helps reinforce the importance of adhering to uniform standards while also providing practicality when necessary.