by ysabel.jurado Wed Dec 12, 2012 4:17 pm
Logically speaking, most could mean all. As for D, I don't think the author is trying to refute it, rather the author is saying, in addition to situation factors, there is also a rhetorical basis.
As for A, in Q1, when looking at the answer for Main Point the main conclusion is that code switched is caused by situational and rhetorical factors and when you look at the way the passage is organized they have 2 paragraphs for each, and the second is devoted to proving the other half of the conclusion, that rhetoric also plays a role. That's why I think A is right.
I was torn with E as well because it seems to explain what is happening but the question is asking why is it there.