Which of the following quotations demonstrates the through-line of the narrative arc in Chapters 2 and 3 of The Call of
the Wild?
"One devil, dat Spitz,' remarked Perrault. "Some dam day heem keel dat Buck."
"There was imperative need to be constantly alert; for these dogs and men were not town dogs and men."
. "She announced her condition by a long, heart-breaking howl that sent every dog bristling with fear, then sprang straight for Buck."
"And not only did he learn by experience, but instincts long dead became alive again."