Multiple Choice
There are many jokes out there about the advantage that having opposable thumbs gives human beings over most animals. As your authors note, however, it is not until the age of ____ that children actually start to use their thumbs as part of the grasping process!
A) 3-4 months
B) 5-6 months
C) 7-8 months
D) 9-10 months
Correct Answer:
Verified
Correct Answer:
Verified
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