GMAT Critical Reasoning (CR) | Re: Cats used to be characterized as independent animals

Cats used to be characterized as independent animals who do not need contact with other animals or humans. Dogs, on the other hand, previously were thought of as animals who are devoted to other animals and humans. When experiments on feline and canine behavior are examined, however, what was thought of as unstereotypical behavior proves to be instances of stereotypical behavior of all animals, including humans.

Which one of the following is a flaw in the argument?

(A) The claim that what stereotypical
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