Answer :
Final answer:
Profit centers are additional programs or services that a personal trainer can offer within their main business to increase revenue. These could be extra programs like nutrition consultation or specialist training. Therefore, the correct option is C
Explanation:
In the context of a personal training business, the additional programs or services offered as revenue boosters are best referred to as profit centers. A profit center is any part of a business that directly adds to its profits. In a personal training business, extra programs like nutrition consultation, advanced or specialist training, or group classes could all be profit centers. They provide additional value to the clients while also increasing the overall revenue of the personal trainer or gym.
Learn more about Profit Centers here:
https://brainly.com/question/30052119
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