Read the excerpt from "as good as gold."

meanwhile, sam tried to ignore his brother’s fuss. he glanced over at the dog working on what would have been a week's worth of breakfasts and felt nothing but pity. the dog looked too small and thin to be out alone in the northern wilds. as sam stared at the dust-colored mutt, the dog noticed and gazed back at him, one ear up and the other ear in what seemed to be a permanent flop. sam couldn't but chuckle as he the grumbling jake clean up.

which best describes how the dog looks?

healthy and strong
mean and aggressive
hungry and harmless
wild and ferocious