I think the answer is OC because in variable line poetry, the intention is to produce this contrast consciously and to produce a rhythm of shorter and longer lines, like the rhythm of shorter and longer sentences.
The answer is C. An appositive phrase is where a noun is restated. "A town in Florida" is right next to the noun, St. Augustine. C. restates the noun in a different way, right next to the noun, St. Augustine.