B) A wolf is able to express subtle gradations of emotion by different positions of the ears, the lips and the tail. There are eleven postures of the tail that express such emotions as self-confidence, confident threat, lack of tension, uncertain threat, depression, defensiveness, active submission, and complete submission. This system seems to be complex. Suppose that there were a 1000 different emotions that the wolf could express in this way. Would you then say a wolf had a language similar to a human's?