Which of the following necktie knots is NOT authorized?

The bow tie is not authorized in the NJROTC uniform standards, as it does not conform to the traditional necktie styles that are outlined in the regulations. The NJROTC guidelines typically specify specific necktie knots that are considered appropriate for the uniform, such as the Half Windsor, Windsor, and Four in Hand, each of which provides a clean and formal appearance suitable for the naval cadet uniform. These authorized knots are designed to align with military standards and promote uniformity among cadets, which is an important aspect of drill and overall presentation. The use of a bow tie, while it may be appropriate in certain formal events or civilian attire, does not meet the criteria set forth in the NJROTC manual for standard cadet uniforms.