Multiple Choice
Eighteen-month-old Joshua received a train set from his visiting grandmother. Joshua's grandmother set it up and demonstrated how to drive the train on the track while saying "chugga, chugga, choo, choo." Later that day, Joshua picked up a train piece and imitated the "chugga, chugga, choo, choo" sounds. Joshua's behavior places him in the __________ substage of the sensorimotor stage.
A) primary circular reaction
B) secondary circular reaction
C) tertiary circular reaction
D) beginnings of thought
Correct Answer:

Verified
Correct Answer:
Verified
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