The wolf was afraid of the bear.

The answer to this question is option 'B', the bear. The wolf was afraid of the bear due to several reasons.

1. Natural Hierarchy:
In the animal kingdom, there is a natural hierarchy where some animals are dominant or more powerful than others. The bear is one such animal that holds a higher position in the hierarchy than the wolf. Bears are larger, stronger, and have more powerful built-in defense mechanisms, such as sharp claws and powerful jaws. This natural dominance and physical strength make the wolf fearful of the bear.

2. Physical Intimidation:
Bears are significantly larger than wolves, with an average weight of 200-600 kg, depending on the species. On the other hand, wolves usually weigh around 25-80 kg. The sheer size difference between the two animals can be intimidating for the wolf. The bear's physical presence alone is enough to evoke fear in the wolf.

3. Aggression and Ferocity:
Bears are known for their aggressive and territorial behavior. When threatened or provoked, bears can display ferocity and attack their opponents. This aggressive nature of bears adds to the fear of the wolf. The wolf understands that engaging with a bear may result in severe injuries or even death.

4. Competition for Resources:
Wolves and bears often compete for similar food resources, such as prey animals or carrion. Bears have a significant advantage over wolves when it comes to accessing and defending food sources. The wolf recognizes the bear's dominance in this aspect and fears confrontations that may arise from competing for resources.

Overall, the wolf's fear of the bear stems from the bear's natural dominance, physical intimidation, aggressive behavior, and competition for resources. These factors contribute to the wolf perceiving the bear as a formidable opponent and feeling afraid in its presence.