Answer:
A. Rotations.
Step-by-step explanation:
Professionals who help others plan healthy diets focus on rotations to eat a variety of foods than, otherwise, one could avoid.
A rotation diet encourages rotating the foods according to food families usually the rotation lasts 4 days and they are intended to create a more healthy way of eating because by doing this they avoid eating always the same food.
I hope this answer helps you.