I struggle with this question very much as well. Painfully chose (B) but holding grudge to this choice as well.
But as far as principle(best illustrated) questions go, we should be aware that the correct answer should be able to lead us to the same conclusion as the argument presented. This does not only concerns the content, but also the superficial
form of the principle.
For example, if the author gave a conclusion which is confirming a certain action, we should then formulate a principle that confirms actions; if the author gave a conclusion about a certain criteria to judging certain things, we should then formulate a principle that is a criteria.
We don't give question as a principle when the conclusion is an answer, we don't give answer as a principle when the conclusion is a question. This actually manifest in basically every principle questions: the test writers always offer wrong answer choices different in form than the author's conclusion.
In this case, the conclusion of the author is the last sentence, which
points out something will raise a question. We should therefore find a principle in the same form.
By merely presenting a question,
the author didn't gave answers to this question, nor did he express opinion to the solvability of the question. Thus answers of these two kinds should be eliminated immediately, such as (A), concerns the solvability of questions, and (C) & (D), present no questions at all. They are just not concerned with the same thing that our author is concerned with: merely pointing out a question.
Simply by looking at the form of the principle, we are left with (B) and (E). I have to admit, I don't like both of them.
I had two questions with (B): first, what created "new context" should be
the test which can predict fatal diseases, instead of
medicines; second, I'm not sure if deciding whether or not to tell people that they are genetically predisposed to fatal disease should be referred to as "ethical dilemma".
And for (E), my question is first,
though used the language "of questionable value", the statement itself is not actually pointing out a question, but shows clear attitude towards technology. This is the biggest problem to me, because our author did not actually show an disconfirming attitude to technology itself, but point out even developed technology can bring new problems. Second, the use of "technology" is actually very broad in scope. Technologies don't just contain medical technology, there are computer technology, fabric technology, etc and etc. But broader scope will appear in principles because they refer to not just one specific case. So as I said, the biggest problem I have here is still with the form. (E) gave us an clear attitude, while the stimulus points out a question.
(B), however, looks better in this regard. Actually, it looks so much better because it said
something creates new contexts in which question can arise, which is basically the same thing our author said. It clads on tightly with the conclusion's form. I can get over the "ethical dilemma" thing because I guess it is a reasonable leap, if we tell the patients, we are risking them to a feeling of hopeless which is not helpful at all; if we don't tell the patients, it seems to contradict the basic moral of telling the truth. So I went with (B) anyway. But I think if they change the "advance of medicine" to "advance of medical technology", I will let go my last bit of grudge. (LSAT writer: but pleaseget over yourself, when do we care about you holding grudge to us or not.)
To consider the form of the argument's conclusion and the principle helped me a lot in principle questions, because it helps me to focus on the conclusion and not to be distracted by other sometimes really attractive answer choices. Looking forward to better explanation on this question, and I hope this helps you too!