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 inner thoughts of all the characters are revealed to the reader by the narrator. Basically omniscient means you get to view everyone's perspective on the situation or what is happening in the story. <span />
