Question

(p.49)An ad in a 1940 Time magazine states, "Listerine mouthwash reduces germs on up to 96.7% of tissue surfaces 15 minutes after a Listerine gargle. Which federal agency would have the authority to determine if this claim was correct?
A.The Library of Congress
B.The Patent and Trademark Office
C.The Food and Drug Administration
D.The united states post office
E.The federal communications commission

Answer

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