I'm pretty sure taking someones idea or words without giving the original source is plagiarism.
Pick C cuz why not give it a chance and see if you get it right
Most likely posiden for ruining everything for the protagonist
Simile: The birthday party ended and the unhappy child was still screaming like a banshee.
Metaphor: The birthday party ended, but the child was still a banshee.
Answer:
Can you please give more context