- Tue Oct 15, 2013 11:09 am
#11943
Hi Sherry,
In that one, the author says that, while we continue to transplant almost every other organ, we cannot achieve brain transplants. Based on this, and the fact that people are having increasingly long lives, the author concludes that people with degenerative brain disorders will make up more and more of the population (since we cannot transplant a brain).
The question that follows is an Assumption question, so the right answer will be an assumption on which the author's conclusion relies.
Answer choice (C) provides that there are degenerative brain disorders (let's call them d.b. disorders) that cannot be cured without transplantation. What if this is not the case?
To test whether or not the author relies on this assumption, we can apply PowerScore's Assumption Negation Technique, and logically negate, or take away, the assumption to see whether it hurts the author's argument. If it does, then it is an assumption on which the author's argument relies.
There are no d.b. disorders that won't be curable without a transplant.
In other words, the negated version of this choice says that every d.b. disorder will be curable without a transplant. If this were the case, the author's argument would fail, so the author does indeed rely on this assumption.
As for answer choice (B), when we take that assumption away by logically negating it, we get something like this:
It is common for people to need more than one transplant of any given organ.
That doesn't hurt the author's argument, which is based on the idea that all those other organs can be transplanted, but the brain cannot, so as people's lives are extended, more will have time to develop d.b. disorders.
Tough one...I hope that's helpful! Please let me know whether this is clear--thanks!
~Steve
Steve Stein
PowerScore Test Preparation