In poetry and literature, irony is used as a rhetorical or literary technique to elaborate on what something appears to be on the surface in contrast to what it actually is. In the text, situational irony is used when the traveller speaks of the king's words engraved on the pedestal. Ozymandias, the king, is proud of his amazing works and of all he constructed in his lifetime, believing that would make him mighty for all time. However, nothing remains around the pedestal; the desert's sands have engulfed all of his colossal works. Therefore, it is the contradiction between what is boasted (that is, the amazing constructions) versus what is actually there (a large stretch of sand and decay) that constitutes the irony in the passage.
i think the answer is c. narration
It could very well be between a metaphor and idiom.... An idiom would be something like a dark horse- could be taken literally or figuratively... A metaphor makes a comparison of some sort or something along those line, it seems more of a metaphor because it could be comparing the wait to the music that used to be heard in the community during childhood. (I hope this helps and again that's just the thing that comes to mind for me- I could be wrong)
I think the answer is credibility