1. The problem asks: During a multi-point inspection, which item should be checked for proper operation? 2. The options are: - A. Radio presets - B. Exterior lights - C. Seat position - D. Floor mats 3. Important rule: A multi-point inspection typically involves checking vehicle systems that affect safety and operation. 4. Among the options, exterior lights are critical for safety and must be checked for proper operation. 5. Therefore, the correct answer is B. Exterior lights. This is a conceptual question related to automotive technology inspection procedures.