The best example of literary device used is, stream of consciousness.
What is literary device?
Literary device are the form of techniques used by writers to add effect to their text.
Because stream of consciousness are the thoughts and conscious reaction a person goes through in a continuous flow. And as in the example the literary device used is stream of consciousness because it tells about the thoughts and feeling of a person in a continuous flow thus it tells what's going in the narrators mind.
Hence the correct option is, A. Stream of consciousness
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