Please Help, I don't understand this Choose the best summary of the story.

A.
This story is about an Elvis impersonator. A stranger keeps repeating a request for "Hound Dog." When the stranger sings for the crowd, he amazes everyone with his voice. J. P. is annoyed at first, but then he's impressed. When J. P. tries to thank him, the stranger is not there.
B.
This story is about life as an Elvis impersonator. Fans sometimes gather in the basement of a restaurant. Large crowds listen and dance. Sometimes there is a person who heckles the band. It's best to let the heckler on stage. J. P. is annoyed at first, but then he's impressed.
C.
This story is about J. P.'s encounter with an Elvis impersonator. The band is playing Elvis tunes at Murray's. The stranger asks if he could sing "Hound Dog." Elvis sang that song on the Ed Sullivan show. J. P. is wearing a shiny jacket and pants. The stranger has peppered hair and thick sideburns.