Advertisement: Auto accidents are the most common cause of whiplash injury, a kind of injury that is caused by a sudden sharp motion of the neck. However, many other types of accidents can produce a sudden sharp motion of the neck and thereby result in whiplash injury. A sudden sharp motion of the neck can be caused by a fall, a bump on the head, or even by being shoved from behind. That is why you should insist on receiving Lakeside Injury Clinic’s complete course of treatment for whiplash after any accident that involves a fall or a bump on the head.

Which one of the following, if true, provides the strongest basis for criticizing the reasoning in the advertisement?