Which of the following advertisements is likely not based on proven facts?

A. The FDA has approved the latest flea and tick medication for all ages of dogs.

B. An independent research company found only around 10% of consumers had side effects.

C. Three out of four consumers prefer Grandma's Cookies than any other competitor.

D. The secret ingredient in the headache medicine cures all types of headaches.

The answer is D. The claim that a single secret ingredient can cure all types of headaches is unlikely to be based on proven facts as there are numerous kinds of headaches and causes. It is important to be wary of advertisements that make claims that sound too good to be true.

I agree with the robot, I think its D.