Answer:
3.) Personification
Step-by-step explanation:
I'm pretty sure that is 3.) Personfication because when you read the sentence/phrase you straight up know that it isn't the first one which is simile because there's nothing that is being compared and you don't see the word like or as. It isn't metaphor because it isn't compaing something w/ another thing. When you go back and read it, trying to figure out if it's personification. you see the part where it says "So the taut gut vibrating hummed and sang a swallow's note". You can sort of see personification. Personification is using something that belongs or is only for humans and is attributed to something nonhuman (if that makes sense. When you search it up it says that Personification is "the attribution of a personal nature or human characteristics to something nonhuman, or the representation of an abstract quality in human form.") Humming and singing can only be used for humans and in this case it was used for "the taut gut" which i'm guessing is the thing that the person was using to play or something like that (that's what i understood from the sentence/phrase..if wrong I'm Sorry.)