by nbayar1212 Sun Oct 07, 2012 4:29 pm
As you pointed out, this advertisement is actually employing a super common technique of persuasion i.e. saying that since two things are somewhat similar categorically, they are probably similar in other respects too.
You are right that the stimulus doesn't explicitly say that the brain is a muscle .... but it really doesn't have to.
The stimulus makes a general claim about how we can improve the performance of the general category of "physical organs" i.e. hearts, lungs, muscles, etc. by exercising them. Then it goes on to say "hey, well, the brain is a physical organ, so you can probably improve its performance too..... so read our magazine that exercises your brain."
Therefore, the argument is saying that since brains and muscles (as well as hearts and lungs) are similar in one respect i.e. they all fall in the general category of "physical organs," it implies that they are probably going to be similar in another respect i.e. there performance can be improved by exercise (E).
(A) says it cites experimental ev - however, not experiment is mentioned in the stimulus.
(B) says it ridicules people - we don't even get a hint of that ....and that would be really weird for an advertisement to do
(C) it explains how the magazine can help exercise your brain - but there is not explanation of the "how" at all - the advertisement just asserts that it will.
(D) says it gives a "careful analysis of the concept of exercise" - first off, I don't know what would constitute as a "careful analysis" anyways, second, we get no analysis of what exercise is in the stimulus i.e. how people can exercise, how various kinds of activities affect physical organs, or what even constitutes as exercise....
Hope this helps.