All consumers of the shaving cream will test the product on a small area of skin before using it. None of the consumers who have yet to use the shaving cream are allergic to it. The shaving cream will come with a money-back guarantee if consumers find they are allergic to it. The shaving cream can be tested on any area of the body, including the face.
A new type of shaving cream has gotten excellent reviews, but there is a worry that an ingredient in the cream can cause a severe allergic reaction. If consumers test the product on a small area of skin before using it, however, a painful allergic reaction can certainly be prevented. Ttherefore, the fear of the cream causing allergic reactions is completely unfounded.
The argument depends on which one of the following assumptions?