Which line from White Fang could be used to support the idea that the young pup is wary of humans?

“White Fang bristled and snarled and snapped in the face of the open-mouthed oncoming wave of dogs . . .”
“Salmon Tongue’s hand reached out to him and rolled him over on his back.”
“He went down past the blasted pine, crossed the open space, and trotted in amongst the trees.”
“He yielded till the hand almost touched him. Then he fought, his teeth flashing in a snap . . .”