Mab6q Wrote:B, in my opinion, if anything, this might even strengthen. The answer choice is trying to hint at the fact that they might not be different after all, that they were changed over time due to copying errors. And as such, it they are not difference, it proves strengthens the authors claim by showing that same author --> similar works .
I disagree with this assessment.
The argument is about great differences in tone, vocab, and details. Maybe, MAYBE you could change a bit of vocab and some small details with a couple of typos (which is what minor copying errors and textual corruptions amount to). This answer choice isn't talking about big enough changes to explain why the two poems differ so much. That's the big problem here - it's out of scope by talking about something completely different than the argument.
As an example, let's say that, for some reason, Twilight survives the next 2000 years, including an apocalypse that wipes out all technology. People copy the book by hand. Would minor copying errors suddenly change the tone, vocab, or details enough to make it unrecognizable? Probably not. A dropped letter here or there; switching a few "you're" for "yours", etc..., and you still have, more or less, something with a similar tone, vocab, and details. If that happened to both Twilight and Breaking Dawn (that's another book in the series, right?), we'd still likely be able to say that they're both by ... Stephanie something? and part of the same series.