I would say "the town is 15 miles further"
Slab City, also called The Slabs, is a largely snowbird community in the Sonoran Desert located in Imperial County, California, 100 miles northeast of San Diego and 169 miles southeast of Los Angeles within the California Badlands, and used by recreational vehicle owners and squatters from across North America
<span>the words that the appositive renames or further identifies - checks and bonds</span>
I believe that the answer would be A because they both talk about nature in their poems.
What speech? You need to be a bit more specific