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It has been suggested that baring the teeth is universally associated with the expression of anger because this ability to convey threats has helped humans to survive. This suggestion best illustrates the: ___________?

Correct answer: D. Evolutionary perspective

  • A. Two-factor theory.
  • B. Cannon-Bard theory.
  • C. Adaptation-level principle.
  • D. Evolutionary perspective

Explanation

Explaining a threatening facial display by its survival value reflects the evolutionary perspective, which links behaviour and emotional expression to adaptation. The other options are theories of emotion or perceptual judgement, not evolutionary explanations.

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