Answer:
The correct answer is - option A. RDAs prevent disease.
Explanation:
Recommended Dietary Allowance or RDA is an average daily level of the required amount of food substances in terms of nutrients to almost all (97-98%) healthy people.
The role of RDA to provide the proper information scientifically on how nutrients are required to the body in terms of the daily requirement, how it affects the health, and prevent chronic disease. It is specific to the individual people group such as kids, adult men, and adult women.