Towel-throwing is an LSAT ritual!
For comparative passages, there's a lot of questions like this where you have to find the overlap (and choose it or choose the one that does not have an overlap). For #10, here's what I think about each answer choice:
(A) Passage A does not present and reject a theory - it critiques an approach.
(B) Passage A does indeed make evaluative claims, but doesn't B also?
(C) is correct because Passage A does provide specific examples - "Oral History and the Narrative of Class Identity," while B does not provide any specific examples. This is tricky, because Passage A's main point is not about the poor attempts made at incorporating narrative, so while we do get examples, they're not examples of the main issue being criticized. However, the answer simply says "examples of a phenomenon it criticizes."
(D) Both passages criticize. So negative.
(E) We can argue that Passage B outlines a theory - that lawyers write that way because they see others lawyers write that way - but if we can argue that, then we can argue that Passage A also outlines a theory - of why historians do what they do to students.
Does that clear it up? And I'm glad we've been a help to you - give us a shout out somewhere so we can pull more unwitting students into our web of evil.