Multiple Choice
According to the Bayley mental scale,a _____ infant should be able to vocalize pleasure and displeasure,persistently search for objects that are just out of immediate reach,and approach a mirror that is placed in front of the infant by the examiner.
A) 2-month-old
B) 6-month-old
C) 4-month-old
D) 1-month-old
Correct Answer:

Verified
Correct Answer:
Verified
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