Who is the Senior Marine Instructor of Curie High School?

• A. Gunnery Sergeant Small
• B. Cadet Santos
• C. Cadet Marquez
• D. MSgt Ledbetter

Answer: (D)

In Marine Corps JROTC programs, the Senior Marine Instructor is the senior enlisted leader responsible for overseeing the Marine component, mentoring instructors, and ensuring training and standards are met. That role is typically filled by a Master Sergeant because the position calls for extensive experience, leadership, and authority.

Among the given options, the person with the Master Sergeant rank fits that role best, which is why Ledbetter is identified as the Senior Marine Instructor. The others listed are either a different rank or students; cadets cannot serve as the Senior Marine Instructor, and a Gunnery Sergeant, while capable, is not the usual designation for the SMI in this setup.