121. A 12-month-old infant suddenly develops a preference for familiar faces and shows distress when approached by strangers. What is the urgent developmental interpretation?
A.
Abnormal social development.
B.
Normative stranger anxiety, a sign of developing attachment.
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C.
Signs of a fearful temperament.
D.
Lack of social stimulation.
📖 Additional Information
Abnormal social development.
Normative stranger anxiety, a sign of developing attachment.
