Answer:
The message is that, as well as dogs, have his own instincts (searching for food when they are starving, and fighting until death in order to get food), humans are not different, they will defend their selves and their possessions until death. This situation does not mean that even when humans are acting because of his instincts, they do not feel fear: when Bill says "I wisht they'd strike game somewheres, an' go away an' leave us alone." it means that they know they have to do something to make dogs go away even they do not like the situation and feel afraid, as well as dogs do but have no other option to survive than to follow their instincts.
Explanation:
I think you forgot to add the passage along with the question. I am answering the question based on my knowledge and research. "She is gloomy and depressed" is the one among the following choices given in the question that is how Sally's <span>mood correspond to the setting, as described in the passage.</span>