A) Interrupting the present story with a scene that tells about events from the past
Answer:
Solar eclipses result from the Moon blocking the Sun relative to the Earth; thus Earth, Moon and Sun all lie on a line. Lunar eclipses work the same way in a different order: Moon, Earth and Sun all on a line.
How would one know if there are no Answers to the question?
Prufrock end it calling himself crab-like. When you get to the lines 120 to 131. the poems is already giving you some incredible and impossible ocean imagery. One that has the singing of mermaids and the sea-girls wearing seaweed. If the world is so isolating, being a crab in the middle of the described imagery is not that bad. And that is the point. The correct answer is:
D Prufrock wishes he were a crab living on the seafloor