OK, I'm wasn't sure how to answer this. For Q1, I put A, because I usually use introspection to refer to a self-analysis, or contemplating and mulling over your own thoughts. But I only put A because you worded this as an either/or question. To be honest, I would have to admit that, when discussing fanfics, I use this word to refer both A *and* B.
For Q2, I had to put "other" only because I answered A up above. If you had included a "Both" for Q1, I would have put "essential" for Q2. But A, above, is not essential, since it's only one way of doing the job (B being the other way.) Does that make any sense?
Edited to add: And, I agree with Laura, below. You *can* have too much of a good thing!
- Vicki
