The correct answer is D. The senator's fondness for media exposure proved to be his Achilles' heel in the end.
Explanation:
In writing and speaking, an allusion occurs when there is a reference to an external idea, person, place, situation or literary work without explaining it but just mentioning it as it is supposed the audience already known the idea the author is making reference to and therefore explaining it is not necessary. This figure of speech can be identified in the sentence "The senator's fondness for media exposure proved to be his Achilles' heel in the end" because, in this, the speaker makes reference to "Achilles' heel" which is a myth in which a Greek Hero called Achiless had only one flaw that was his heel. This means, the author only mention this but do not explain it as it is widely known by people and therefore this is an example of allusion.
The speaker's tone in this poem is not only very accepting of death but also, in a way, flattered by death's willingness to stop for her and appreciative of death's gentle treatment of her.
