Final answer:
Maria should discuss her experience as a personal trainer at a commercial gym to demonstrate qualities of a Certified Personal Trainer.
Step-by-step explanation:
Maria should make sure to discuss option A: Experience working as a personal trainer at a commercial gym during the interview to demonstrate qualities of a Certified Personal Trainer. This experience would showcase her ability to work with clients one-on-one, develop personalized fitness plans, and track their progress.
While option B of teaching fitness classes at a community center could be relevant, it may not provide the same level of individual attention and customized programming that is expected from a Certified Personal Trainer. Option C of working as a physical therapist is a different role and may not directly relate to the responsibilities of a personal trainer. Similarly, option D of working as a nutritionist does not directly align with the skills and expertise needed as a fitness professional.
By highlighting her experience as a personal trainer at a commercial gym, Maria can demonstrate her knowledge of exercise programming, assessing client needs, and guiding individuals towards their fitness goals.