I believe the answer is c
Principal, aps, guidance counselor, etc
Lee wrote it to his son, but it was intended for a wider audience. The internal conflict shown in this letter is that Lee does not want war or secession but refuses to take like up arms against his own state (Virginia).
Recurring dreams usually mean there is something in your life you've not acknowledged that is causing stress of some sort. The dream repeats because you have not corrected the problem. Another theory is that people who experience recurring dreams have some sort of trauma in their past they are trying to deal with.