Final answer:
A physiotherapist is the professional who works under the supervision of a physician to promote physical fitness and health. So the correct answer is Option C.
Step-by-step explanation:
The specialist who works under the supervision of a physician to promote physical fitness is the c) Physiotherapist. A physiotherapist works with patients to improve their movement and function, often as part of a physician-directed treatment plan. This can include prescribing exercises for physical fitness and rehabilitation, providing advice on maintaining health, and helping patients to manage pain and prevent disease.
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