The other answers are right but there's another answer option. That answer is "Crusoe's mental debate about sin."
A metaphor that is clearly identified in Oedipus the King, sight versus blindness. For example, Tiresias is blind, however he can see the truth everywhete. On the other hand, Oedipus, who has no physical impediment to see, seems to be blind towards his destiny. When Oedypus finally sees the truth he blinds himself.
I would guess that it means that they like that sentence or they think it’s well written. That’s what my teacher always does!
Threatens to eliminate more sophisticated language.
<u>Explanation:</u>
Metaphors are the figures of speech in which a word or a phrase is applied to an object or to an action which to which it is not literally applicable. A comparison is done with the use of metaphor in which there is direct comparison of one thing with the other.
In this case also, the metaphor used endangered hatchlings is used to make a comparison with the sophisticated language which is nowhere related to the word itself.