Hi, this line has 9 feet, and this would be an "anapest" - u u / u u / u u /, "u" being unstressed syllable, and "/" being stressed. Here the only stressed syllables are: "light", "sil-", and "moon". The rest of them are unstressed.
The line from "To my Dear Loving Husband" that contains a metaphor is B. "My love is such that rivers cannot quench,"
A metaphor is when you compare two things without using <em>like </em>or <em>as.</em>
Gregor is a traveling salesman