challenge: What are the four facets of validity used to assess animal models of depression?
  
  A. Behavioral validity, physiological validity, emotional validity, and cognitive validity
  B. Neurological validity, psychological validity, social validity, and environmental validity
  C. Reflection of core symptoms, predictive validity, validity of etiology, and biological plausibility
  D. Face validity, predictive validity, construct validity, and statistical validity
  Answer: 