Answer:
A. CDC
Explanation:
The CDC is the best source of information for a lot of things, addictions, diseases, and even eating disorders. Check out their website for more info regarding eating disorders if you're curious.
FDA: they jurisdiction over 80% of the food supply including seafood, dairy and produce.
USDA: they regulate meat, poultry and processed egg products.
It prevents you from gaining a lot of weight, so you stay healthy and don't get as many health problems.
The correct answer is letter A. Pre-existing conditions are usually the exclusions of health care programs available in most societies. This is the reason why there are a lot of lawsuits filed against healthcare companies who do not fairly adhere with the interests of their clients/patients.