Final answer:
The correct answer is B. Dietary preferences. Dogs and wolves are both carnivorous animals that primarily eat meat. Breeding cycles, playfulness, and coat colors are not differences between them.
Step-by-step explanation:
The correct answer is B. Dietary preferences. Dietary preferences can vary among individual dogs and wolves, but as a whole, both dogs and wolves are carnivorous animals that primarily eat meat.
Dogs and wolves have similar breeding cycles, playfulness, and coat colors, so these are not differences between them.