Question

read this excerpt from white fang. furthermore, it was remarkably easy to overthrow a dog taken by surprise; while a dog, thus overthrown, invariably exposed for a moment the soft underside of its neck—the vulnerable point at which to strike for its life. white fang knew this point. it was a knowledge bequeathed to him directly from the hunting generation of wolves. so it was that white fangs method, when he took the offensive, was: first, to find a young dog alone; second, to surprise it and knock it off its feet; and third, to drive in with his teeth at the soft throat. what motivating force causes white fang to aim for another dogs neck during an attack? his feelings of vulnerability his natural wolf instincts his fear of the man - animals his wish to please his mother

Explanation:

The text states the knowledge of the vulnerable neck - point was bequeathed from the hunting generation of wolves, indicating natural wolf instincts.

Answer:

B. his natural wolf instincts