Three-month-old Jocelyn smiles in response to the sound of her father singing her a silly bedtime song. This is called smiling.
A) social
B) reflexive
C) genetic
D) responsive

Question

Quizplus · Accepted Answer

Social smiling is a response to social interaction, such as a person's voice or face, which typically develops around 6 to 8 weeks of age in infants. Jocelyn's smiling in response to her father's singing is an example of social smiling, as it is triggered by a social stimulus.

Three-Month-Old Jocelyn Smiles in Response to the Sound of Her