Humorous television advertisements are the only effective ones. For if ... ...

Humorous television advertisements are the only effective ones. For if something is humorous it will not only attract people’s attention, it will hold their attention long enough for a message to be conveyed. And, obviously, for an advertisement to be effective it must convey its message.

Which one of the following most accurately describes a flaw in the argument?


(A) It takes for granted that nothing but humor can attract a person’s attention and hold it long enough for a message to be conveyed.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in PT70 (Oct 2013): Logical Reasoning B