Try to think of main ideas first.
Some ways to think of ideas are:
1- Self-interview
2- Ask classmates or family members
3- Try to think of experiences from the past or things you would like to be\do.
Hope this helps
Hello! I believe it would be sand in the ocean
I personally would say c) irony.
Why?
Alliteration is like the sally seashells kids song.
Metaphor is saying " he is a rock" when "he" is not actually a rock
Hyperbole is something exaggerated or a claim.
That makes me believe it is irony. Hope this helps.