Which of the following is considered the normal operational range from a SART unit to a surface vessel?

Correct Answer: Option B — 5-10 miles

SOLAS carriage requirements and performance standards specify that a Search and Rescue Transponder (SART) must provide a reliable detection range of approximately 5 to 10 miles from a surface vessel using an X-band radar, and up to 30 miles from an airborne search aircraft.