Answer:
ANTONIO: …That most ungrateful boy next to you
From the furious and frothy mouth of the wild sea
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The provided example illustrates an allusion.
An allusion serves as a literary technique that hints at a specific person, object, or event through brief references. It describes one entity by speaking of another while implying a deeper meaning. In Act V Scene I, for instance, Shakespeare employs allusion to indicate how Antonio preserved Viola's life.
SEBASTIAN... Let imagination lull my senses in Lethe's waters.
If it is like this to dream, let me remain asleep!
This example represents personification.
Personification is a literary technique that attributes human traits to non-human entities, inanimate objects, or abstract notions. Here, Sebastian uses personification to convey his emotions regarding Olivia's affection for him.
DUKE: I seemed as though she purified the air of disease,
At that moment, I was transformed into a deer;
This instance showcases a metaphor.
A metaphor establishes an indirect comparison between two elements based on shared characteristics. In this segment, Shakespeare draws a metaphorical connection between Duke Orsino and a deer at the moment he sees Olivia.
