Answer: D) humorous exaggeration.
Step-by-step explanation: A hyperbole is a type of figurative language that consists in exaggerating an event or a statement. An hyperbole is often a humorous exaggeration. In the given claim from "To His Coy Mistress" we can see an example of a humorous exaggeration, because we know that it isn't possible for the speaker to spend "an age at least" adoring every part of his beloved.