I narrowed it down to A and C, and incorrectly picked A. My thoughts:
I understand that Lewis' point is that we must know about history in order to learn lessons from it. For Morris, my initial take was that he says but anything can be proven or disproven given the variety of historical events. Thus, I thought he was claiming there are not any UNCONTESTED historical facts, since anything can be proven or disproven. I saw this as attacking Lewis' view that we MUST KNOW history. If we cannot know, then we cannot benefit from the lessons. However, from the stim I guess I may have been making too big of an assumption. It is possible for an historical fact to be contested even if it cannot be proven or disproven. Maybe for the intellectual exercise? Is that right?
At the same, I realize now that C cuts right to the chase, in that if nothing can be proven or disproven, then we cannot have any unequivocal lessons. Where did my reasoning go awry with A? How can I quickly eliminate A, nd how can I make C a more attractive choice. Thanks.