What do NCOs wear on their beret?

The correct answer is that NCOs wear the JROTC Insignia on their beret. The JROTC Insignia signifies membership in the Junior Reserve Officers' Training Corps and reflects the values, mission, and identity of the program. It is a symbol of excellence and dedication to leadership development among students involved in the program.

While the unit crest and rank insignia are important elements of military uniforms, they are typically worn in different locations and not on the beret. The combat badge is specific to individuals who have served in combat operations, and therefore is not a standard insignia associated with all NCOs within JROTC. Thus, JROTC Insignia is the appropriate choice for what NCOs would wear on their beret, as it best represents their affiliation with the program and its overarching goals.