The correct answer is A. an audience member at a blues show.
He or she is telling us about the show he or she went to, where they heard the blues musician play. They describe the musician, the atmosphere, the music, give us their opinion and feelings about the entire night. We learn that the narrator has managed to remember the lyrics to the song because they were so touched by them.
The coordinating conjunctions are: for, and, yet, so
I would say that a "Scientific article describing the negative effect of school uniforms" would be your best bet because the article contains factual information about how wearing school uniforms deteriorates a child's creativity ( and whatever the article said)!
I hope that this helped. : )