Final answer:
The Air Force Certified Fitness Specialist is reserved for those who complete the Master Fitness Instructor Program, not simply basic training, strength training, or a nutrition course.
Step-by-step explanation:
The Air Force Certified Fitness Specialist is a designation reserved for individuals who have completed the Master Fitness Instructor Program. Although in basic training Air Force personnel learn to walk, move, and look like each other, becoming a Fitness Specialist requires additional specialized education and training. The Master Fitness Instructor Program goes beyond basic training and provides more advanced skills specific to physical fitness, exercise programming, and wellness education. As such, the correct answer to the student's question is D. Master Fitness Instructor Program.