In this sentence, the word "throughout" is used as a preposition.
A line of verse with five metrical feet, each consisting of one short (or unstressed) syllable followed by one long (or stressed) syllable, for example Two households, both alike in dignity<span>.</span>
It's C because it seems like the writer is going to reveal Elvis's personality and life through (as well as the writer's relationship with him.) the writer's eyes.
