- Wed Feb 19, 2025 10:15 am
#111981
Hi ashpine,
First, it's important to note that the first sentence of the stimulus is the conclusion. It basically contains two terms "maintaining a healthy back" and "exercising the muscles on opposite sides equally." The second one is not mentioned anywhere else in the argument, so this is new information in the conclusion that will likely appear in our answer to a Supporter Assumption question.
The first term, "maintaining a healthy back" does appear again in the second sentence. This sentence links "maintaining a healthy back" to "balanced muscle development."
It is true that the argument assumes a connection between "proper alignment and protecting the spine" and "maintaining healthy back," and the answer could have addressed this assumption, but instead the answer focused on the gap between "exercising the muscles on opposite sides equally" and "balanced muscle development" that occurs in the conclusion of the argument.
Remember that arguments often contain multiple assumptions, but only one will appear as the correct answer. If you prephrase an assumption and it doesn't appear as an answer choice, that doesn't necessarily mean that your prephrase was incorrect. It may be that the answer just focuses on a different assumption.
As Francis stated in an earlier post (Post #6):
"Since the author is apparently assuming that balanced muscle development requires exercising muscles on either side equally, the argument must assume that not exercising muscles equally can lead to unbalanced muscles. If the author did not believe this, then there would be no reason to conclude that we need to exercise both sides equally."
While there is conditional reasoning in the stimulus, personally I wouldn't bother diagramming this out. I would simply note the new information in the conclusion "exercising the muscles on opposite sides equally" and think about how that term relates to the rest of the argument, which is that it should connect to "balanced muscle development."
Using the Assumption Negation Technique on Answer B confirms this is the correct answer. (And the fact that this answer is not technically conditional due to the word "tends" does not really matter, it is still a statement that the argument is assuming.)