I would say 1)Marcus supports his opinions with evidence from the text and 2)Marcus has brought the novel to use as a reference. Hope this helps
The train had minorly derailed and the people were frantic. Voices seemed to echo through our little town. Some in concern, others in pain. With the limited first-aid that I knew, I wanted to help. It didn't take long for me to find the first injured person. It was a rather small cut on their head and they were quite accepting of treatment. I hesitantly climbed into the train after everyone had seemed to stop hustling out.
"Hello?" I called out, my eyes scanning the carriage as I checked for any remaining passengers. After a few minutes of searching, with some of my friends doing the other compartments, we concluded that everybody had gotten off.
The conductor followed me out, cursing heavily as he told me about how his schedule had been thrown off. "So had your train." I reminded him carefully, gesturing to all the people. He nodded in agreement.
