It depends if it's a single or a double bar line.
if it's a double bar line it's just there to separate the sections of the music and if it's a single bar line all it does it separate the beats in order to make a measure.
That is true. Coda is a concluding section in a composition; Italian term meaning "tail".
I do believe it’s “A”, this is because she has a great description of what the piece is, but she doesn’t know what she likes or dislikes about it ( I am sorry if this doesn’t help, I have only just begun Brainly a month or so ago)
