Question ID:PT85 S2 Q14 Passage:Researcher: People are able to tell whether a person is extroverted just by looking at pictures in which the person has a neutral expression. Since people are also able to tell whether a chimpanzee behaves dominantly just by looking at a picture of the chimpanzee's expressionless face, and since both humans and chimpanzees are primates, we conclude that this ability is probably not acquired solely through culture but rather as a result of primate biology. Stem:Which one of the following, if true, most strengthens the researcher's argument? Correct Answer Choice:CChoice A:People are generally unable to judge the dominance of bonobos, which are also primates, by looking at pictures of them. Choice B:People are able to identify a wider range of personality traits from pictures of other people than from pictures of chimpanzees. Choice C:Extroversion in people and dominant behavior in chimpanzees are both indicators of a genetic predisposition to assertiveness. Choice D:Any common ancestor of humans and chimpanzees would have to have lived over 7 million years ago. Choice E:Some of the pictures of people used in the experiments were composites of several different people.