The nature trail is six feet wide and seven miles long. It slithers through the forest like a snake curving, and bending (1) along the banks of the river. The county cleared this path and paved (2) it with packed gravel, so they (3) ould have a peaceful place to hike and bike. I ride this trail nearly every day—not on a bike (4), but on “Luigi.” That’s the nickname I gave my motorized wheelchair.  Today, Luigi’s battery is fully charged (6), I know I can go all the way to the end of the trail and back. But I always carry a cell phone on me just in case. Luigi’s motor moves slowly (7) as we venture along the trail. I can hear the gravel quietly crunching beneath
Luigi’s rubber wheels. I hear (8) the songs of cardinals in the trees and the clamor of crickets in the grasses. I hear the murmur of water slipping over time-smoothed rocks. It is (9) September, and some of the trees are starting to blush red and orange at their tips. The wind ruffles my hair and chills my face as I bounce gently, along (10) in my padded chair. Bicyclists streak past (11) in a blur of color and a cloud of dust (12) I don’t understand their hurry. Luigi can go fast, but I like to ride slowly, to see like a hovering dragonfly. I want to see everything that has changed, grown, bloomed, or died since yesterday. Today I notice that a spider has woven a web between some honeysuckle bushes by the bridge. I see that the bank of vibrant yellow black-eyed Susans by the barbed wire fence is starting to dry and fade away. I spend an hour; looking (13) and listening and learning.
And now my ride is finished for today. I leave the trail and come out into the open, manicured park at the trails (14) end. There, my older brother helps me out of my chair and into his waiting van. He puts Luigi in the back, and I return to the world of pavement, streetlights, and traffic. But in my mind, I am still gliding through the forest. I am like the water, flowing over ancient stones. Inside, I am still a dragonfly.
5. If the writer were to delete the preceding sentence, the essay would primarily lose:
A. a reason why the narrator is in the forest.
B. a detail important for understanding the essay.
C. a contrast to the lighthearted tone of the essay.
D. nothing at all; this information is irrelevant to the