Omg i remember reading this story! A fav!
Ok so:
Four sound are
planes bombing (unpleasant)
Marching of the nazis (unpleasant)
Children playing (pleasant)
Music? I forgot what the instrument was but they heard an instrument (pleasant)
It is B. In the passage, Romeo sees her in the tomb, dead-like, and says that she does not look dead. That is situation irony- he is not aware that she is not dead and describes her as it is. Only the audience notices that.