Answer and Explanation
1. Sally learned that the drinking water she bought from the store contained contaminants.-goes with the Food and Drug Administration
Food and drug administration (FDA) is a US department of health and human services which is responsible for protecting the public health by ensuring safety on all food stuffs and drugs the members of the public are consuming in the country.
2. Stuart realized that the new speakers he bought had a much lower output than what was indicated on the box-goes with the Federal Trade Commission
Federal Trade Commission (FTC) is an independent agency in US which its responsibility is to make sure that consumers are protected and ensures that all the businesses are fairly run. It deals with complains like monopolistic practices, deceptive advertising, spam among other complaints as tabled by the consumers.
3. Meredith called the credit reporting agency to dispute inaccurate information on her credit report.-goes with the Fair Credit Reporting Act
Fair Credit Reporting Act (FCRA) is a US government legislation which its main purpose is to promote accuracy and the privacy of the states consumers as as they are contained in the files whenever they report complaints to the agencies.