The traditional timeframe for the fall of the Roman Empire is around 4

Apologies guys.
Correct answer is B
posting OA
Whenever you are asked for a statement that the author is "most likely to agree with", you are being asked an inference question, often about the core of the author's argument. To be successful on a question like this one, it helps to examine the answer choices within the context of the passage as a whole.

Choice (A) argues that vocabulary is the main difference in historiography, not interpretation. While vocabulary is mentioned as an aspect of historiographical debate (specifically the definition of the word "Roman"), the passage mainly discusses interpretation, not vocabulary, so (A) can be eliminated.

Correct answer choice (B) gives the definition of historiography - that historian's interpretations are influenced by both the events themselves and the writer's cultural context. This is correct. You can find concrete evidence for this in paragraph two ("Historiography tries to take into account that, because historians are human, two historians might have vastly different interpretations of the same set of facts in light of their cultural contexts and the accounts they choose to value of the same event.") and in paragraph three ("Every time historians and teachers talk about the past, they decide which stories to privilege and which to discount.").

Choice (C) also mentions cultural context, but is incorrect. While the author mentions historical context as a factor in historical interpretations, there is no argument about whether historians need to expand their contexts.

Choice (D) can be eliminated because of its scope. While the author does mention lack of historical documents as a reason for some historical interpretations, it isn't the only reason given.

Choice (E) can similarly be eliminated because while the author does mention that some historiographical writings do bring new perspectives to light, no indication is given as to whether this is the primary reason that these debates occur.