by BackoftheEnvelope Tue Oct 06, 2015 3:26 pm
Having a crystal-clear understanding of our task is the most important step in solving this question accurately and without any lingering uncertainty. Read the stem closely: why can the test "never provide conclusive proof" of authorship? This is what allows us to easily eliminate (B). Below, I've provided my real-time thoughts as I was solving the question (I left them unedited so future visitors could see where I went wrong and how I caught myself):
Task: Find flaws with the test for authorship
Test: If peculiarities appear in the work of only one poet, they are likely to be personal idiosyncrasies. Allows scholars to identify a poem as the work of a particular poet by comparing poem of unknown authorship to work of that poet.
Flaw: Takes for granted that every work of a particular poet will contain their personal idiosyncrasies (PS). Perhaps poet includes a PS in one poem, but not in another poem, and there are no other PS he uses. The test would not identify the poet as the author even though they are. [As you can see here, I predicted the substance of (B) with this flaw. Fortunately, I remembered that I had to discuss why the test could never provide CONCLUSIVE proof when I was stuck between (B) and (C).]
Elimination: (A) Irrelevant. (B) Leave it. (C) Leave it. (D) Irrelevant. (E) Irrelevant.
Confirmation: (C) is essentially saying that we could never know conclusively whether that peculiarity was unique to a particular author. This matches our task perfectly. Perhaps we discover a poem by X in the future that uses a personal idiosyncrasy we previously relied on to (incorrectly) attribute authorship of another poem to Y. Upon discovering this, we’d be compelled to revise our claims of authorship with the new evidence that X also used the personal idiosyncrasy we relied on as a distinguishing feature of Y's work. Therefore, the proof can never be conclusive.
(B) Does not match our task. It also assumes there are no other peculiarities that can distinguish the work of one poet against their other works. Perhaps, a poet writes two poems A and B using peculiarity X in A but not in B, but using peculiarity Y in both A and B. Even if we don't find peculiarity X in B, we could still attribute B to our poet because peculiarity Y is used in both A and B.