KritiJain0805
Why is the answer choice A?
Alright! Let me explain!
To solve this question, let us deploy
IMS's four-step technique.
STEP #1: IDENTIFY THE QUESTION TYPE BY READING THE QUESTION STEMThe question stem states, 'The argument assumes which of the following?' Clearly, as solvers, we need to figure out the assumption on which the argument is based. Now that we know we are dealing with an assumption question, let us proceed to the second step.
STEP #2: DECONSTRUCT THE ARGUMENTIn an assumption question, it is a must to deconstruct the argument by figuring out the conclusion and the premise. Let us now desconstruct the argument.
CONCLUSION: When hormone X exceeds normal concentrations, tremors are induced.
And the basis on which the author arrived at this conclusion becomes the premise.
PREMISE: People who experience tremors have high concentrations of hormone X. On the other hand, people who have never experienced tremors have normal concentrations of this hormone.
Now that the argument is deconstructed, we may proceed to the third step.
STEP #3: KNOW WHAT THE CORRECT ANSWER IS SUPPOSED TO DOIn an assumption question, the right answer bridges the gap between conclusion and the premise. It states the thought without which the author could not have arrived at the conclusion; however, this thought or presupposition is always unstated. The premise states the following:
-> People who experience tremors have high concentrations of hormone X.
-> People who have never experienced tremors have normal concentrations of this hormone.
Based on these two premises alone, the author has concluded that high concentrations of hormone X cause tremors. However, for the author to conclude that it hormone X's exceeding normal concentrations that induce tremors, he must be assuming that tremors do not affect the production of hormone X. Note that from the very same premises, one could as well conclude that it is tremors that lead to hormone X's exceeding normal concentrations. Hence, the right answer should bridge this gap by stating that tremors do not bring about an increase in hormone X's production.
Now that we know what the right answer should do, let us proceed to the final step.
STEP #4: ELIMINATE INCORRECT ANSWER OPTIONSAnswer options that go beyond the scope of the argument and/or those that do not help bridge the gap between the conclusion and the premise can be eliminated.
(A) Tremors do not impact the production of hormone X. -
BRIDGES THE GAP -
If this were not an assumption, that is, if it was tremors that impacted the production of hormone X, the author's argument will fall flat. -
KEEP (B) There is no other hormone that causes tremors. -
OUT OF SCOPE -
Not worried about other hormones. -
ELIMINATE(C) No other hormone is as responsible as hormone X for causing tremors. -
OUT OF SCOPE -
Again, not worried about other hormones. -
ELIMINATE(D) Hormone X is a more vital causative factor for inducing tremors than one's willpower. -
OUT OF SCOPE -
Not worried about the stated comparison between hormone X and willpower. -
ELIMINATE(E) People with normal concentrations of hormone X will never have tremors. -
OUT OF SCOPE -
The argument does not concern itself with what will happen in the future. -
ELIMINATEPS: This is an experimental question. If you have any thoughts, feel free to share!