Answer:
C.
the US Food and Drug Administration website
Step-by-step explanation:
The Food and Drug Administration is responsible for protecting the public health by ensuring the safety, efficacy, and security of human and veterinary drugs, biological products, and medical devices; and by ensuring the safety of our nation's food supply, cosmetics, and products that emit radiation.
So knowing this it is easy to conclude that they would know the product you are researching, and have trusted reliable info to help you.