Alison seems to be correct by calling a bear's den habitat.
By definition, a habitat is a place where organisms live. In other words, it can be described as the natural home of living organisms.
Dens are generally defined as homes of wild animals.
Thus, a bear's den can be described as the habitat of the bears.
More on habitats can be found here: https://brainly.com/question/3069117?referrer=searchResults
