I'm pretty sure it's to boost dental health. fluoride is used to prevent cavities and tooth decay, so i'm assuming its option 3.
Enrichment are nutrients that were lost during food processing have been added back. An example is adding back certain vitamins lost in processing wheat to make white flour. Fortification are vitamins or minerals that have been added to a food that weren't originally in the food.
Answer:
keep straight legs is not normal but having arms out I think is also wrong, so now I'm confused too
Explanation:
