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    Psychology
  3. Study Set
    The Development of Children
  4. Exam
    Exam 6: Social and Emotional Development in Infancy
  5. Question
    An Infant's First Smiles
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An Infant's First Smiles

Question 81

Question 81

Multiple Choice

An infant's first smiles:


A) are endogenous, associated with physiological functions.
B) are triggered by seeing their mothers' faces.
C) usually occur only when they are wide awake.
D) are exogenous, or in response to environmental stimuli.

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