Literal language means exactly what it says, while figurative language uses similes, metaphors, hyperbole, and personification to describe something often through comparison with something different. See the examples below. Literal Descriptions.
Is there anything else that goes with this question?
I think the answer is A) The monster becomes bitter.
I think it's explanation since the text shows comparison which isn't direct, ni similar words are present, ruling out synonyms and examples aren't present in the text.