Hi, SPGlasses,
You raise some good points!
Would it be safe to say that a borderline case surely was not written to exploit particular reading protocols?
No, we don't know this for sure. Borderline cases could occur even when the author is trying to write to exploit a certain protocol.
Can a text be written to exploit particular reading protocols but still be a borderline case?
Yes, as far as we know from the evidence in the text, this could happen.
Because if that were the case, we can't say for sure that some borderline cases were not written to exploit particular reading protocols (and vice versa).
No, this does not follow. While (1) it could be possible that some borderline cases were written to exploit certain reading protocols, this statement does not preclude the inference that (2) it is highly likely that some borderline cases were not written to exploit certain reading protocols.
We have no evidence in the text to support statement (1), but statement (1) is possible. We do have evidence in the text to support statement (2). To wit:
- "The problem of “borderline cases”— especially in science fiction—arises so often that the definition fails to demarcate genres entirely." (Lines 25-27). This statement indicates that borderline cases are very common.
- "But the texts most central to a genre are those texts that were clearly written to exploit a particular protocol" (Lines 33-35). This statement indicates that the least likely texts to be borderline cases are written to exploit a particular [reading] protocol.
If the texts most central to a genre are written to exploit a protocol & if borderline cases (not most central to a genre) are very common, then it is highly likely that there exist borderline cases that were not written to exploit a particular genre.
Since we are looking for a statement with which the author would be "most likely to agree," we have sufficient evidence to suggest that the author would agree with the statement in answer choice (A).
This is an essential part of success on this question task: we must find something backed up by evidence in the passage with which the author would likely agree. This is a different task from when we are asked to make a logical inference. While we might argue that there is some remote possibility that every borderline case was in fact written to exploit a reading protocol, this statement both contradicts the preponderance of the evidence in the text and does not prevent us from concluding that the author would be
likely to agree with the opposite statement, that there exist borderline cases that were not written to exploit a certain reading protocol.
Finally, we must compare this answer choice to the other four answer choices. We are looking for the "best" answer, the one better supported by the text than the other answers. Given that we have evidence supporting answer choice (A) and that we do not have evidence backing up the other answer choices, answer choice (A) meets the criteria for a credited response.
Great questions! I hope this helps!